[Serusers] Alias still in memory and database after remove

Hello, I'm writing a custom program using the serctl interface to manage users (adds, deletes, etc.). One problem that I am having is with the case where I want to reassign an alias to a different user. My assumption was that the command: %serctl alias rm <aliasX> would delete any references to "aliasX" and allow me to reuse "aliasX" for a different user. What I've found is that even after using the aforementioned command, "aliasX" is still in ser's memory cache and in the database's alias table. Thus, if I attempt to reassign this number, it fails. I'm sure I'm not the first to try reassigning extensions through serctl, so either it is broken or I do not understand what is really going on (likely). Any and all help is greatly appreciated. Thanks.