Fixed an error in the previous commit handling pin labels in GDS

input, which failed to update the "lastLabel" record of the cell
in the case that the placeholder label being deleted was the last
label, leading to labels being lost during GDS input.

calma/CalmaRdpt.c

@@ -928,6 +928,8 @@ calmaElementText()
 			cifReadCellDef->cd_labels = lab->lab_next;
 		    else
 			sl->lab_next = lab->lab_next;
+		    if (cifReadCellDef->cd_lastLabel == lab)
+			cifReadCellDef->cd_lastLabel = sl;
 		    freeMagic((char *)lab);
 		    break;
 		}