$ git clone -n https://src.fedoraproject.org/rpms/perl-GnuPG-Interface.git /var/lib/mock/f45-build-23825-599/root/chroot_tmpdir/scmroot/perl-GnuPG-Interface
Cloning into '/var/lib/mock/f45-build-23825-599/root/chroot_tmpdir/scmroot/perl-GnuPG-Interface'...
$ git fetch origin 5811cedd39a5cd65c768cd330ca9ba8fc0661e06:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-GnuPG-Interface
 * [new ref]         5811cedd39a5cd65c768cd330ca9ba8fc0661e06 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5811ced Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild