Crash when chainfiring with chaingun

[malek]

   Game saved. Press <Enter> to exit.
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                                                                     ∙An unhandl
ed exception occurred at $00493015 :                                  #########
ERangeError : Range check erroror : blue armor [2/2] (92%)
  $00493015  TBEING__FIRE,  line 558 of dfbeing.pas4 [29/40]
  $00478D53  TPLAYER__DOFIRE,  line 760 of dfplayer.pas      Phobos Base  Lev5
  $0047A7BE  TPLAYER__AICONTROL,  line 1057 of dfplayer.pas
  $0049362B  TBEING__ACTION,  line 590 of dfbeing.pas
  $00411202  TDOOM__RUN,  line 371 of doombase.pas
  $00401AFD  main,  line 31 of doomrl.pas

Abnormal program termination! Please write down the above
to help get rid DoomRL of all those bugs! You only need
to write down the filenames and linenumbers.
Attempting to save game.... Press <Enter>

Topic: ​http://forum.chaosforge.org/index.php/topic,2427.0.html