[ENH] User mentions : Extend 'Tagging users' to usernames containing dash or dot
Ticket: https://avan.tech/item83046
Backported from: !4373 (merged)
Here I backport only one commit: !4373 (bbcf23f7)
Ticket: https://avan.tech/item83046
Backported from: !4373 (merged)
Here I backport only one commit: !4373 (bbcf23f7)