Reports (1, 2, 3a / 3b) show that Edit release edits changing release events, made less than 1 hour after same editor Add release are not auto edits, although they should have been.
is related to
MBS-5145Should split edits in two when half of it is automatic and other half is not
Open
MBS-1880Allow an editor to apply edits without voting within a short timeframe after his/her 'add release'