Verified again the 0.6 branch is unaffected by this bug (https://code.launchpad.net/~vanvugt/mir/dummy-0.6/+merge/231505)
So we possibly introduced it after r1831 (the final merge of devel into 0.6). Although if it was a regression in the development-branch, it's unclear how it passed CI then but does not now.
Verified again the 0.6 branch is unaffected by this bug (https:/ /code.launchpad .net/~vanvugt/ mir/dummy- 0.6/+merge/ 231505)
So we possibly introduced it after r1831 (the final merge of devel into 0.6). Although if it was a regression in the development-branch, it's unclear how it passed CI then but does not now.