tapplied fix of toggletag by Jan Kaliszewski - dwm - [fork] customized build of dwm, the dynamic window manager
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       ---
 (DIR) commit 0f26de991f742d548e024a2dadcbfa3a7db8d4b2
 (DIR) parent 840f937a9876091aef227316b7eb2db0f9e5255e
 (HTM) Author: Premysl Hruby <dfenze@gmail.com>
       Date:   Fri, 22 Aug 2008 15:26:30 +0200
       
       applied fix of toggletag by Jan Kaliszewski
       Diffstat:
         M dwm.c                               |       6 +++++-
       
       1 file changed, 5 insertions(+), 1 deletion(-)
       ---
 (DIR) diff --git a/dwm.c b/dwm.c
       t@@ -1469,8 +1469,12 @@ togglefloating(const Arg *arg) {
        
        void
        toggletag(const Arg *arg) {
       -        unsigned int mask = sel->tags ^ (arg->ui & TAGMASK);
       +        unsigned int mask;
        
       +        if (!sel)
       +                return;
       +        
       +        mask = sel->tags ^ (arg->ui & TAGMASK);
                if(sel && mask) {
                        sel->tags = mask;
                        arrange();