Aliasing tillsit3142 → aogitsune_jitto
Link to alias

Reason:

青狐じっと -> aogitsune_jitto

Same artists, regular name vs twitter handle.
https://e621.net/artist/show?name=aogitsune_jitto

EDIT: The tag alias tillsit3142 -> aogitsune_jitto (forum #264320) has been approved by @Rainbow_Dash.