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When I’m searching for a group name here and start to type, the search is filtered according to all the symbols I already typed after each symbol. I can wait as long as I want between the symbols.
However, when I search for a username here, after each symbol, I must type the next symbol after not more than ~0.4Sec or else, the results are filtered, and the cursor is no longer inside the search window, so I cannot continue typing (unless I put the cursor back inside the search window again and again after each symbol).