Fix another error in rB5e12e62a6a4e

The code was ignoring the icremental with small distances.

source/blender/editors/transform/transform_snap_animation.c

@@ -57,7 +57,7 @@ short getAnimEdit_SnapMode(TransInfo *t)
   }
   else if (t->spacetype == SPACE_GRAPH) {
     if ((t->mode == TFM_TRANSLATION) && activeSnap(t)) {
-      /* Use the translate mode snap. */
+      return autosnap;
     }
     else {
       SpaceGraph *sipo = (SpaceGraph *)t->area->spacedata.first;