$ git clone -n https://src.fedoraproject.org/rpms/htmltest.git /var/lib/mock/f38-build-side-42-init-devel-654113-26582/root/chroot_tmpdir/scmroot/htmltest
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-654113-26582/root/chroot_tmpdir/scmroot/htmltest'...
$ git fetch origin df81d041ce3fd0814ab944cc978dda427b4c725e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/htmltest
 * [new ref]         df81d041ce3fd0814ab944cc978dda427b4c725e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at df81d04 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild