$ git clone -n https://src.fedoraproject.org/rpms/guile-gnutls.git /var/lib/mock/f40-build-2559569-62110/root/chroot_tmpdir/scmroot/guile-gnutls
Cloning into '/var/lib/mock/f40-build-2559569-62110/root/chroot_tmpdir/scmroot/guile-gnutls'...
$ git fetch origin 24553b7e299dfc8326049436db5e262d965b1edf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/guile-gnutls
 * [new ref]         24553b7e299dfc8326049436db5e262d965b1edf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 24553b7 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild