$ git clone -n https://src.fedoraproject.org/rpms/erlang-stringprep.git /var/lib/mock/f45-build-8483-389/root/chroot_tmpdir/scmroot/erlang-stringprep
Cloning into '/var/lib/mock/f45-build-8483-389/root/chroot_tmpdir/scmroot/erlang-stringprep'...
$ git fetch origin db975382aeb2faed90f0bd4e8c612637cf22293b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/erlang-stringprep
 * [new ref]         db975382aeb2faed90f0bd4e8c612637cf22293b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at db97538 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild