$ git clone -n https://src.fedoraproject.org/rpms/jgit.git /var/lib/mock/f40-build-2132932-50812/root/chroot_tmpdir/scmroot/jgit
Cloning into '/var/lib/mock/f40-build-2132932-50812/root/chroot_tmpdir/scmroot/jgit'...
$ git fetch origin d11c7758c2ef88df43b06c3ff7ef2cf7f79a9767:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jgit
 * [new ref]         d11c7758c2ef88df43b06c3ff7ef2cf7f79a9767 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d11c775 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild