Has been deleted multiple characters when typing in Nextcloud Talk

Talk in browser(chrome) if delete multiple characters (more than 2 characters) while typing a sentence after mentioned user, there are cases where all of them has been deleted.
There is no problem with re-entering, but it seems that it is easy to occur when typing long sentences.

■Steps to reproduce
1.) Open Talk in browser(Chrome)
2.) type sentence after user mentioned
3.) delete multiple characters (more than 2 characters) while typing a sentence

■Expected behaviour
has been deleted multiple characters (more than 2 characters)

■Actual behaviour
there are cases where all of characters are deleted

■Brower
-Chrome
-Vivaldi

■Nextcloud server version
25.0.3

■Talk version
15.0.2

■Custom Signaling server configured
None

■Custom TURN server configured
Yes

■Custom STUN server configured
None

■Server log
No response

■Additional information
Going well in Mozilla Firefox and Safari and no user mention