Modified the behavior of "select area subcell" so that it no longer

requires that subcells be unexpanded in order to select them.  This
seems to be more in line with what one would expect from the
documented description of the "select area" command, and more in
line with common-sense expectations.

select/selCreate.c

@@ -473,10 +473,15 @@ SelectArea(scx, types, xMask, globmatch)
     }
     else (void) DBCellCopyAllLabels(scx, types, xMask, SelectUse, &labelArea);
 
-    /* Select unexpanded cell uses. */
+    /* Select cell uses. */
+    /* NOTE:  Changed 2/9/2025;  Previously this was restricted to unexpanded
+     * cell instances, which is an unnecessary restriction.  By changing "xMask"
+     * to "CU_DESCEND_ALL", this now only ever looks one level down and will
+     * select any instance that is a child of the edit cell, expanded or not.
+     */
 
     if (TTMaskHasType(types, L_CELL))
-        (void) DBCellCopyAllCells(scx, xMask, SelectUse, &cellArea);
+        (void) DBCellCopyAllCells(scx, CU_DESCEND_ALL, SelectUse, &cellArea);
     else
     {
 	cellArea.r_xbot = 0;