Attempting to upload a GIF and PNGs in the same tweet will fail

[SorraTheOrc]

To Reproduce:

Attempt to post to twitter with an entry that has both GIF and PNGs selected.

The error message displayed is not intuitive:

ArgumentException: An item with the same key has already been added. Key: oauth_version
System.Collections.Generic.Dictionary2[TKey,TValue].TryInsert (TKey key, TValue value, System.Collections.Generic.InsertionBehavior behavior) (at <437ba245d8404784b9fbab9b439ac908>:0) System.Collections.Generic.Dictionary2[TKey,TValue].Add (TKey key, TValue value) (at <437ba245d8404784b9fbab9b439ac908>:0)
WizardsCode.Social.OAuthHelper.AddDefaultOAuthParams (System.Collections.Generic.Dictionary2[TKey,TValue] parameters, System.String consumerKey, System.String consumerSecret) (at Assets/Editor/Social/OAuthHelper.cs:78) WizardsCode.Social.OAuthHelper.GetHeaderWithAccessToken (System.String httpRequestType, System.String apiURL, System.String consumerKey, System.String consumerSecret, System.String accessToken, System.String accessSecret, System.Collections.Generic.Dictionary2[TKey,TValue] parameters) (at Assets/Editor/Social/OAuthHelper.cs:68)
WizardsCode.Social.Twitter.GetHeaders (System.String url, System.Collections.Generic.Dictionary2[TKey,TValue] parameters, System.String method) (at Assets/Editor/Social/Twitter.cs:370) WizardsCode.Social.Twitter.ApiGetRequest (System.String url, System.Collections.Generic.Dictionary2[TKey,TValue] parameters, System.String& response) (at Assets/Editor/Social/Twitter.cs:333)
WizardsCode.Social.Twitter.WaitForUploadToComplete (System.String mediaId, System.String& response) (at Assets/Editor/Social/Twitter.cs:480)
WizardsCode.Social.Twitter.UploadLargeMedia (System.String filePath, System.String& response) (at Assets/Editor/Social/Twitter.cs:460)
WizardsCode.Social.Twitter.PublishTweetWithMedia (System.String status, System.Collections.Generic.List`1[T] filePaths, System.String& response) (at Assets/Editor/Social/Twitter.cs:202)
WizardsCode.Social.Twitter.PublishTweet (WizardsCode.DevLogger.DevLogEntry entry, System.String& response) (at Assets/Editor/Social/Twitter.cs:131)
WizardsCode.DevLogger.SchedulingPanel.OnGUI () (at Assets/Editor/SchedulingPanel.cs:107)
WizardsCode.DevLogger.DevLoggerWindow.OnGUI () (at Assets/Editor/DevLoggerWindow.cs:181)
System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at <437ba245d8404784b9fbab9b439ac908>:0)
Rethrow as TargetInvocationException: Exception has been thrown by the target of an invocation.
System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at <437ba245d8404784b9fbab9b439ac908>:0)
System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) (at <437ba245d8404784b9fbab9b439ac908>:0)
UnityEditor.HostView.Invoke (System.String methodName, System.Object obj) (at :0)
UnityEditor.HostView.Invoke (System.String methodName) (at :0)
UnityEditor.HostView.InvokeOnGUI (UnityEngine.Rect onGUIPosition, UnityEngine.Rect viewRect) (at :0)
UnityEditor.DockArea.DrawView (UnityEngine.Rect viewRect, UnityEngine.Rect dockAreaRect) (at :0)
UnityEditor.DockArea.OldOnGUI () (at :0)
UnityEngine.UIElements.IMGUIContainer.DoOnGUI (UnityEngine.Event evt, UnityEngine.Matrix4x4 parentTransform, UnityEngine.Rect clippingRect, System.Boolean isComputingLayout, UnityEngine.Rect layoutSize, System.Action onGUIHandler, System.Boolean canAffectFocus) (at <78b213560771414e9fa6f1b95f5ad8bb>:0)
UnityEngine.UIElements.IMGUIContainer.HandleIMGUIEvent (UnityEngine.Event e, UnityEngine.Matrix4x4 worldTransform, UnityEngine.Rect clippingRect, System.Action onGUIHandler, System.Boolean canAffectFocus) (at <78b213560771414e9fa6f1b95f5ad8bb>:0)
UnityEngine.UIElements.IMGUIContainer.HandleIMGUIEvent (UnityEngine.Event e, System.Action onGUIHandler, System.Boolean canAffectFocus) (at <78b213560771414e9fa6f1b95f5ad8bb>:0)
UnityEngine.UIElements.IMGUIContainer.HandleIMGUIEvent (UnityEngine.Event e, System.Boolean canAffectFocus) (at <78b213560771414e9fa6f1b95f5ad8bb>:0)
UnityEngine.UIElements.IMGUIContainer.SendEventToIMGUI (UnityEngine.UIElements.EventBase evt, System.Boolean canAffectFocus) (at <78b213560771414e9fa6f1b95f5ad8bb>:0)
UnityEngine.UIElements.IMGUIContainer.HandleEvent (UnityEngine.UIElements.EventBase evt) (at <78b213560771414e9fa6f1b95f5ad8bb>:0)
UnityEngine.UIElements.CallbackEventHandler.HandleEventAtTargetPhase (UnityEngine.UIElements.EventBase evt) (at <78b213560771414e9fa6f1b95f5ad8bb>:0)
UnityEngine.UIElements.MouseCaptureDispatchingStrategy.DispatchEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel) (at <78b213560771414e9fa6f1b95f5ad8bb>:0)
UnityEngine.UIElements.EventDispatcher.ApplyDispatchingStrategies (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel, System.Boolean imguiEventIsInitiallyUsed) (at <78b213560771414e9fa6f1b95f5ad8bb>:0)
UnityEngine.UIElements.EventDispatcher.ProcessEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel) (at <78b213560771414e9fa6f1b95f5ad8bb>:0)
UnityEngine.UIElements.EventDispatcher.ProcessEventQueue () (at <78b213560771414e9fa6f1b95f5ad8bb>:0)
UnityEngine.UIElements.EventDispatcher.OpenGate () (at <78b213560771414e9fa6f1b95f5ad8bb>:0)
UnityEngine.UIElements.EventDispatcherGate.Dispose () (at <78b213560771414e9fa6f1b95f5ad8bb>:0)
UnityEngine.UIElements.EventDispatcher.ProcessEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel) (at <78b213560771414e9fa6f1b95f5ad8bb>:0)
UnityEngine.UIElements.EventDispatcher.Dispatch (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel, UnityEngine.UIElements.DispatchMode dispatchMode) (at <78b213560771414e9fa6f1b95f5ad8bb>:0)
UnityEngine.UIElements.BaseVisualElementPanel.SendEvent (UnityEngine.UIElements.EventBase e, UnityEngine.UIElements.DispatchMode dispatchMode) (at <78b213560771414e9fa6f1b95f5ad8bb>:0)
UnityEngine.UIElements.UIElementsUtility.DoDispatch (UnityEngine.UIElements.BaseVisualElementPanel panel) (at <78b213560771414e9fa6f1b95f5ad8bb>:0)
UnityEngine.UIElements.UIElementsUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr) (at <78b213560771414e9fa6f1b95f5ad8bb>:0)
UnityEngine.GUIUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr) (at <819de1aa368e45faa4f78e26c97c62b0>:0)