Index: class.doc
==================================================================
--- class.doc
+++ class.doc
@@ -1845,11 +1845,13 @@
 
 bit22 *
   Prevents movement regardless of Height, but may still allow sliding.
 
 bit23 *
-  Reserved for future.
+  If this bit is set, then do not consider any further objects at the
+  new location of the shoved object after successfully shoving, and
+  instead restart the movement immediately.
 
 bit24 *
   Allows sliding to the left regardless of Height; the other attributes
   still need to be correct (unless bit26 is set). The game engine sets
   this bit if the Climb/Height is OK for moving.

Index: exec.c
==================================================================
--- exec.c
+++ exec.c
@@ -886,10 +886,11 @@
       if(!(hit&0x44) && (oE->shovable&(1<<dir)) && o->inertia>=oE->weight && !(oE->oflags&OF_VISUALONLY)) {
         oE->inertia=o->inertia;
         if(move_dir(obj,objE,dir)) {
           if(!(oE->oflags&OF_DESTROYED)) o->inertia=oE->inertia;
           hit|=0x8000;
+          if(hit&0x800000) goto restart;
         }
       }
       if(hit&0x400) goto fail;
       objE=obj_below(objE);
     }