Bugs with automation (when cloning an automated instrument or undoing the deletion of the automation track)

Example:
-Lets say that I have an instrument and I am automating some parameter of this instrument (e.g volume, panning, cutoff frequency of a filter effect that I have added to the instrument, or anything else).
-I decide to clone this instrument.
-After cloning the instrument the automation tracks become broken and they no longer automate the parameter. The automation tracks then look like the one in the picture attached.

The same thing happens to the automation track if I delete the track and then press edit -> undo.


Edit: Oops, I realize that I used rc8 in the screenshot however I tested that LMMS 1.2.1 has the same bug (and my OS is Linux mint)