Little experience this morning :
I open FogBugz and… miracle : Casenum 35215 is marked as “resolved” ! Then I download Corona’s latest build (2014.2460) and try to run the little project I linked earlier.
The bug is still there. Absolutely the same as before, nothing changed.
Edit : well, I guess I was a bit too pressed, since “resolved” means (according to support mail) “still being tested internally”. Hoping the correction will come soon then !