$ git clone -n https://src.fedoraproject.org/rpms/gomtree.git /var/lib/mock/f38-build-side-42-init-devel-706268-27161/root/chroot_tmpdir/scmroot/gomtree
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-706268-27161/root/chroot_tmpdir/scmroot/gomtree'...
$ git fetch origin 7f7aae721a430ffd723c5b83088cb80b06285a28:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gomtree
 * [new ref]         7f7aae721a430ffd723c5b83088cb80b06285a28 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7f7aae7 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild