"Assign to new Mixer Channel" Does not update mixer channel name

[regulus79]

System Information

Arch Linux, GNOME 47

LMMS Version(s)

1.3.0-alpha.1.771+gcd9af2478 (or any recent master)

Most Recent Working Version

1.2.2

Bug Summary

When you rightclick on a mixer channel LCD and select "Assign to" and "New Mixer Channel", it creates a new mixer channel, but the name of the mixer channel is not updated, it just stays at "Channel 13" or something. However, if you double-click on the mixer channel to rename it, the correct name appears. Or if you hover over it, the tooltip shows the correct name.

This bug does not occur in stable.

Expected Behaviour

The name shown on the new mixer channel should be updated immediately after the mixer channel is created.

Steps To Reproduce

• Make a new project
• Add an instrument
• Rightclick on the instrument's mixer channel LCD, select "Assign to"->"New Mixer Channel"
• The new mixer channel is created, but without the instrument's name.

Logs

Screenshots / Minimum Reproducible Project

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