$ git clone -n https://src.fedoraproject.org/rpms/perl-Pod-Spell.git /var/lib/mock/f45-build-25902-613/root/chroot_tmpdir/scmroot/perl-Pod-Spell
Cloning into '/var/lib/mock/f45-build-25902-613/root/chroot_tmpdir/scmroot/perl-Pod-Spell'...
$ git fetch origin 8ef3f28a60f5e5f5e18f3d4b70ee6a8d1f37c36c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Pod-Spell
 * [new ref]         8ef3f28a60f5e5f5e18f3d4b70ee6a8d1f37c36c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8ef3f28 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild