This only seems to be a problem on devices with a mix of Mir 0.6 and 0.7. If you flash devel-proposed for example you'll get pure Mir 0.7.0 and no problem.
If the problem is indeed just that we failed to bump MIRCOMMON_ABI then that's understandable. In fact I did bump it and the change got reverted because there wasn't strong evidence of it actually being necessary. Needs more investigation, although it would be relatively harmless to just bump MIRCOMMON_ABI on development-branch right now.
This only seems to be a problem on devices with a mix of Mir 0.6 and 0.7. If you flash devel-proposed for example you'll get pure Mir 0.7.0 and no problem.
If the problem is indeed just that we failed to bump MIRCOMMON_ABI then that's understandable. In fact I did bump it and the change got reverted because there wasn't strong evidence of it actually being necessary. Needs more investigation, although it would be relatively harmless to just bump MIRCOMMON_ABI on development-branch right now.