While wearing mending armor when xp gained the bar wont go up or fix tool or armor that has mending enchantment

While wearing mending armor when xp gained the bar wont go up or fix tool or armor that has mending enchantment

Pls fix this bug for 1.17 vanilla and 1.17 pre relesead 1

This bug annoy bcs i cannot enchant or used anvil bcs the bug

Pls fix it now

Thank