Package directory is purged when launching app from QtCreator

When launching the application from QtCreator (even when not having touched build configuration or any source file), the package directory [1] is deleted and re-created when the app launches causing any data stored in eg. QStandardPaths::DataLocation or other app-specific locations to be lost.

[1] In my case C:/Users/broulik/AppData/Local/Packages/4517960-some-other-numbers