Hotcue: allow setting hotcue inside active, saved loop

[ronso0]

Fixes #12618

• activate a loop
• seek inside the loop
• trigger hotcue_A_activate or hotcue_A_set
  • new loop cue at loop start position
• trigger hotcue_B_activate or hotcue_B_set
  • new hotcue at current position

Probably need to adjust some tests

[daschuer]

Thank you, need to test.

[daschuer]

I can confirm the issue and that it is fixed with this PR.

[Holzhaus]

Should there be a way to disable this magic? I sometimes use this to move loop cues (clone loop cue and then clear the original one).

[ronso0]

I sometimes use this to move loop cues

You mean store the loop in another cue?
If so, you can do it the other way around:

• activate the saved loop 4
• clear the cue (loop still active)
• hit hotcue 2, done

Related: #9968

[ronso0]

FWIW I just filed #12645 which might also help avoid some workarounds.

[ronso0]

Wouldn't hurt to add a test for this.

[ronso0]

Okay, this is ready.

[daschuer]

LGTM, Thank you