using "a" key deletes the chat

i was using the chat to input commands like /give and when inputing the "a" key my whole chat would be replaced by a "a" key
i tested this a bit further and found that escaping the window and using tab made this glitch happen

thend i binded the "strafe left" from "a" to "g" and it stopped

after i bind it back to a and it worked fine