I thought about submitting a bug report and still might... but I wanted to vent here.
Way back in ARR, I couldn't heal myself no matter what, unless I deliberately hovered the mouse over me in some way. I liked that. MO working as intended. Now, however, I can heal myself whether I want to or not. Just like how targeting other objects regularly works.
I hate, absolutely HATE healing myself unless it was completely intentional.
I can now unintentionally heal myself with mouse over macros.
Oh well, time to get used to another style of healing. MO has become unreliable and... a healer needs reliability.
On a less ragey and more serious note, there are times where I have my mouse over someone else and I end up casting w/e it is on myself anyway. I know I'm in range, so that isn't the problem. No, I don't have <t> or <tt> or <me> in the macro either. Also, I usually use the party list as it's easier than trying to do it in the active field of mechanics.
I had to edit this a lot cause I have a 1k text limit for some reason.