Fixing single-instance not working with Qt5 ?

[ysalmon]

For some reason, any of these two lines confuses the single-instance mechanism and makes TXS open each file in a new instance when invoked from the desktop environment on a file or via CLI texstudio somefile.tex.

I tried to say new QFileSystemModel() instead of new QFileSystemModel(this) on line 733, but to no avail.

(insert picture of dog in front a a keyboard with caption "I have no idea what I am doing")

Would fix #3743.

[sunderme]

okay, your changes seem to work and look somewhat reasonable for a work-around

[ysalmon]

I should check if this is just /tmp or more generally files on different mountpoints. My current machine is impractical to test this, but in the next days I should be able to test on a machine where /opt is a mountpoint.

The underlying cause seems to be a bug in Qt. Maybe it is corrected in Qt6 ?

[sunderme]

thanks