Qtractor deletes .mid-files belonging to MIDI clips on exit

[suedwestlicht]

commit 38d5ebbbd0fdd32c8f1ff0d25ee458b1fe1692b8 "Almost complete overhaul of clip files life-cycle and reference-counting" leads to a bug:

• Load *.qtr session
• Open synth plugin (e.g. tal noisemaker) and change a parm
• Confirm the MIDI track's plugin dialog with OK
• Qtractor regognizes a changed session
• Quit Qtractor WITHOUT saving the changed session

-> *.mid files belonging to clips got deleted

See screencast simplescreenrecorder-2024-08-04_17.30.40.mkv.zip

[rncbc]

holy cow!

this is really bad and potentially disastrous: a simple oneliner mistake sneaked into that commit!

hopefuly fixed now in 986bddc

i guess a hot-fix release (v1.1.1) is in order, quite urgently!

thanks a lot.

[suedwestlicht]

Tested and approved.

Thx Rui