Implement "untag" https://git.debu.gs/gitweb/?p=fedibbs;a=commitdiff;h=f075fed3677c410cb0739be5aaa80f132ca85dab code, git.debu.gs | 2025-10-31 10:45:16 +0000 GMT | No.1642 Implement "untag" [DH] interp.go