Wolves won't move

When I was playing Minecraft yesterday, I decided to place a lead on a wolf I recently tamed.

After some time, I removed the lead I place on my wolf to make it attack some mobs, but the wolf won't attack. I tested it on a wolf I didn't place a lead before, and it attack the mobs normally. So, I was trying to that wolves with a lead placed before doesn't attack mobs it just stays there, and wolves without a lead placed on them attack normally.

How to Reproduce

• Get a tamed or untamed wolf (Tamed is easier)
• Place a lead on wolf then remove.
• Make the wolf attack a mob (For untamed place sheep or rabbit)

Observed Results

The wolf with a lead placed on before will not attack.

Wolf without a lead placed on will attack normally.

Expected Results

The wolf with a lead placed on before should still attack mob normally.