[RSSP Requisition] Cannot Select 2-Character Requester Name in Proxy Submission

■What we want to do:
Submit a requisition on behalf of another user in the RSSP screen.

■System Issue:
When performing proxy submission in RSSP screen, we are unable to select a Requester whose name has only 2 characters (e.g., 刘洋).
The system requires at least 3 characters to initiate the search, so 2-character names do not appear.

Is there a way to enable the selection of 2-character Requester names?