Undo track solo selection broken

[merrickclay]

Bug Summary

The undo action seems to exhibit odd behavior when trying to undo the toggling of the "solo" or "mute" buttons in the Song Editor.

Steps to reproduce

1. Open blank project
2. Press the "solo" button on one track
3. Repeat step 2
4. Repeatedly press Ctrl+Z mutliple times, observing the behavior each press.

Other odd behavior can be observed by toggling the "mute" button instead of the "solo" button. Try skipping step 3 to observe other odd behavior. Or run step 4 before and after step 3 for more unusual behavior.

Expected behavior

Ctrl+Z undoes the toggling of the "mute" button or the "solo" button. In the case of the solo button, it should properly unmute or mute the other tracks.

Actual behavior

Some presses seem to do nothing, others unmute tracks one by one when they should be unmuted together, etc. The behavior seems to be diffferent depending on the steps taken in the Steps to reproduce section above.

Screen Recording

I pressed Ctrl + Z over 8 times in this recording. The first 4 seemed to do nothing.
https://user-images.githubusercontent.com/55554300/147799075-2b5dd1a2-6256-4be2-96e4-5b20e43131ce.mp4

Affected LMMS versions

1.3.0-alpha 13e1749