$ git clone -n https://src.fedoraproject.org/rpms/nettle.git /var/lib/mock/f41-build-side-1-2821453-33219/root/chroot_tmpdir/scmroot/nettle
Cloning into '/var/lib/mock/f41-build-side-1-2821453-33219/root/chroot_tmpdir/scmroot/nettle'...
$ git fetch origin 222185fcfd2b53862ee4afb13ad10848df8ad101:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nettle
 * [new ref]         222185fcfd2b53862ee4afb13ad10848df8ad101 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 222185f Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild