Didn't bother with asking for explanation, as we were near final boss, but it still was funny. Especially as he CCed droids before and didn't jump on them.
i know how it happens :-)
i CC a npc
then fight starts by group and mess go all around and i miss to hit tab to change target!
so i go right in and break my CC
then i think "what the hell i'm doing!?" and switch target at last on unmarked one
and break someones CC :-)