$ git clone -n https://src.fedoraproject.org/rpms/trousers.git /var/lib/mock/f40-build-752468-116712/root/chroot_tmpdir/scmroot/trousers
Cloning into '/var/lib/mock/f40-build-752468-116712/root/chroot_tmpdir/scmroot/trousers'...
$ git fetch origin 16a7ba88fabf62b0e8bb49175cfd23cde9811acd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/trousers
 * [new ref]         16a7ba88fabf62b0e8bb49175cfd23cde9811acd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 16a7ba8 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild