Partially addressed by 4bbeaebbd39ba7c0cec01a758d2ba1d7e2232c2a (popup selection only invalidates on change) but should also suppress invalidation when the sheet is up (where one could switch around and eventually dismiss the sheet with the same selection as on start)
Partially addressed by 4bbeaebbd39ba7c0cec01a758d2ba1d7e2232c2a (popup selection only invalidates on change) but should also suppress invalidation when the sheet is up (where one could switch around and eventually dismiss the sheet with the same selection as on start)