nefarious: fix usermode changes internally applying on the wrong target
nefarious: fix usermode changes internally applying on the wrong target

A regression from fca23c7d5594ba098324c0236bd5f6f62488e93b overwrote the target UID with a nick before passing it into applyModes(), which raises an "unknown mode target" warning and causes the mode change to be dropped.

(cherry picked from commit af210638342651dcb86c83319231dbb5ed4de98d)

GLolol/PyLink