This is not an mIRC bug, you can change this into your Script Editor -> Popups -> View -> Nicklist -> and change the .OP line with

Code:
.Op: {
  var %n = $numtok($snicks,44)
  var %o = $str(o,%n)
  mode # + $+ %o $replace($snicks,$chr(44),$chr(32))
}

Last edited by westor; 08/11/14 10:59 AM.
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