$ git clone -n https://src.fedoraproject.org/rpms/perl-ColorThemeBase-Static.git /var/lib/mock/f45-build-22403-591/root/chroot_tmpdir/scmroot/perl-ColorThemeBase-Static
Cloning into '/var/lib/mock/f45-build-22403-591/root/chroot_tmpdir/scmroot/perl-ColorThemeBase-Static'...
$ git fetch origin eaf1fcf07d79dc797654c9e2eb9bdff154186c6e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-ColorThemeBase-Static
 * [new ref]         eaf1fcf07d79dc797654c9e2eb9bdff154186c6e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at eaf1fcf Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild