$ git clone -n https://src.fedoraproject.org/rpms/libestr.git /var/lib/mock/f40-build-785583-134021/root/chroot_tmpdir/scmroot/libestr
Cloning into '/var/lib/mock/f40-build-785583-134021/root/chroot_tmpdir/scmroot/libestr'...
$ git fetch origin 48e5a2103eeaf2c3fce6c0c53ce9cb19d136308d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libestr
 * [new ref]         48e5a2103eeaf2c3fce6c0c53ce9cb19d136308d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 48e5a21 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild