$ git clone -n https://src.fedoraproject.org/rpms/asc-music.git /var/lib/mock/f40-build-1991067-43458/root/chroot_tmpdir/scmroot/asc-music
Cloning into '/var/lib/mock/f40-build-1991067-43458/root/chroot_tmpdir/scmroot/asc-music'...
$ git fetch origin eca2b7a12854498833943fc77f60aaaa83f3d16e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/asc-music
 * [new ref]         eca2b7a12854498833943fc77f60aaaa83f3d16e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at eca2b7a Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild