$ git clone -n https://src.fedoraproject.org/rpms/perl-Object-MultiType.git /var/lib/mock/f45-build-25450-611/root/chroot_tmpdir/scmroot/perl-Object-MultiType
Cloning into '/var/lib/mock/f45-build-25450-611/root/chroot_tmpdir/scmroot/perl-Object-MultiType'...
$ git fetch origin b65fa982673c00a43882bd976f3ac752e0d3a09f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Object-MultiType
 * [new ref]         b65fa982673c00a43882bd976f3ac752e0d3a09f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b65fa98 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild