New comment by unspecd on void-packages repository

https://github.com/void-linux/void-packages/pull/25526#issuecomment-769693255

Comment:
I can't figure out why this error occurs:
```
In file included from /builddir/muse-muse_3_1_1/muse3/muse/waveedit/wavecanvas.cpp:72:
/builddir/muse-muse_3_1_1/muse3/muse/components/copy_on_write.h:26:10: fatal error: ui_copy_on_write_base.h: No such file or directory
   26 | #include "ui_copy_on_write_base.h"
```