$ git clone -n https://src.fedoraproject.org/rpms/BitchX.git /var/lib/mock/f40-build-760544-121103/root/chroot_tmpdir/scmroot/BitchX
Cloning into '/var/lib/mock/f40-build-760544-121103/root/chroot_tmpdir/scmroot/BitchX'...
$ git fetch origin f6eb5e733cc97c7938d7569d65c752ddc602ddcd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/BitchX
 * [new ref]         f6eb5e733cc97c7938d7569d65c752ddc602ddcd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f6eb5e7 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild