$ git clone -n https://src.fedoraproject.org/rpms/rust-imgref.git /var/lib/mock/f42-build-3231220-41191/root/chroot_tmpdir/scmroot/rust-imgref
Cloning into '/var/lib/mock/f42-build-3231220-41191/root/chroot_tmpdir/scmroot/rust-imgref'...
$ git fetch origin 93341c75cbb14998f53b40311f93657f9f520e70:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-imgref
 * [new ref]         93341c75cbb14998f53b40311f93657f9f520e70 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 93341c7 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild