Ouch, yeah, I really wish this wasn't in there :/. It's the only serious bug that made it into Alpha 6, but I thought it would only hit people rarely since only experts use that feature and I warned about it (added it to the news announcements recently, too). You're an expert!
I've really wanted to try to avoid doing a 6b release to avoid having so many hotfixes in the release schedule. Unfortunately I didn't discover this bug until after the initial week-long moratorium on new features had ended, so by then it was too late to do what I normally would for a serious-category bug--an immediate hotfix. It's not so easy to hotfix this while I'm so far into a new build. (Not impossible, of course, just more work...). Doubly unfortunate that it also coincides with Alpha 7, which happens to be one of the longer dev cycles
(otherwise 7 would be out about now with the fix).
BUT, since you ask so nicely and you're making videos... okay I'll do it. This will be a special build rather than a regular release, though--no version update, just a hotfixed .exe to drop in.
I'll get on it immediately.