- BUG: load bug_files net-bug.ry, then using cursor, click/drag the
       bottom of the wire attached to TP? until it meets the GND
       symbol terminal. lengthened wire connects to horizontal wire,
       but fails to connect to GND terminal [report: Erich]


util_wirenet/csch_wirenet_recalc_line_chg() @ r8878

	/* Install conns at new coords before net merge; order matters, because if
	   the wirenet of the edited line gets merged into another, existing wirenet,
	   that will inherit the connections we find here; but if connections
	   are calculated only after the merge in csch_wirenet_newline_merge_parent(),
	   then "line" is already a deleted object from the old, now deleted wirenet
	   and the connection is not made on deleted objects.
	   Test case: tests/manual/cn1 */
