Fragility of loading data in an 'unclean' session

[steffilazerte]

In ccvir_app(), re-loading data works fine, and re-loading data to then modify it also works great.

However, if a users fills out a bunch of inputs (or loads a previous data set), and then loads another previously saved file, things get a bit funny, as some inputs may not be 'blanked' or reset as they should be (they'll be overwritten no problem, but only if there are saved values to use).

There are a couple of options:

1. Tell users not to do this
2. Provide users with a reset button (like the one on the Results page)
3. Use shinyjs::reset() to revert all inputs

Something to consider for the future!

[see24]

The reset button actually doesn't work with the current setup to stop the app when the window closes so that might not work...