Hi Anderson S. de Souza,
This issue is still ongoing. It occurs in the standard Windows Save As dialog (and other places).
My repro:
I'm saving a bunch of similar docs
Click Save As
Save doc with name Foobar 1
Click Save As
Click the name of first file you just saved to copy the name into the filename box (input box is now "Foobar 1"
Select "1" with mouse (in order to change it to "2")
!!! Error: Cursor jumps to the far left of the edit box before the "F"
Expect: "1" to stay selected
Reselecting "1" works fine.
It *may* have something to do with OneDrive syncing files at the same time. I wonder if OneDrive syncing "Foobar 1" and changing the name causes the dialog to refresh and the edit box to get reset somehow.