core: fix stuck mouse (patch from Nei) (bug #36533)

ChangeLog

@@ -7,6 +7,7 @@ v0.4.0-dev, 2012-12-19
 Version 0.4.0 (under dev!)
 --------------------------
 
+* core: fix stuck mouse (bug #36533)
 * core: fix default mouse buttons actions for script buffer (focus the window
   before executing action)
 * core: add git version in build, display it in "weechat-curses --help" and

src/gui/curses/gui-curses-mouse.c

@@ -323,6 +323,13 @@ gui_mouse_event_code2key (const char *code)
         }
     }
 
+    /* nothing found, reset now or mouse will be stuck */
+    if (!key[0])
+    {
+        gui_mouse_event_reset ();
+        return NULL;
+    }
+
     if (!MOUSE_CODE_END(code[0]))
     {
         strcat (key, "-event-");