Some players would open 1 ♣, their 5 card suit. Partner would respond 1 ♥ and North would have a problem.
You can’t rebid 1 NT because that shows 15-17.
You can’t rebid 2 ♦ because you are too weak to reverse with only 13 points
Your only choice is to rebid 2 ♣ with that moth eaten 5 card suit.
Some players would open 1 ♦ with the intention of rebidding 2 ♣.
Partner would then give false preference to 2 ♦ because South can’t afford to pass 2 ♣ in case North has a strong hand. North will then play in a 4-2 ♦fit.
There is a much better solution
North should open 1 NT which partner will pass
A similar situation arises holding ♠ 82 ♥ AJ104 ♦ AQ ♣ Q8532
If you open 1♣ you can rebid 1♥ if partner responds 1♦
But if partner responds 1♠ you are stuck for an acceptable rebid.
Opening 1NT again solves any potential problem.
DON’T BE AFRAID TO OPEN 1 NT WHEN YOU ARE 5422 SHAPE IF YOU MAY OTHERWISE HAVE AN UNACCEPTABLE REBID.
ALWAYS CONSIDER YOUR REBID BEFORE MAKING ANY OPENING BID.
IN DOING SO, ALWAYS ASSUME PARTNER MIGHT MAKE THE MOST INCONVENIENT RESPONSE TO YOUR OPENING BID!