$ git clone -n https://src.fedoraproject.org/rpms/lcalc.git /var/lib/mock/f45-build-15673-478/root/chroot_tmpdir/scmroot/lcalc
Cloning into '/var/lib/mock/f45-build-15673-478/root/chroot_tmpdir/scmroot/lcalc'...
$ git fetch origin f0b4aca689335ab657c37f66d7bc312224921069:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lcalc
 * [new ref]         f0b4aca689335ab657c37f66d7bc312224921069 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f0b4aca Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild