$ git clone -n https://src.fedoraproject.org/rpms/perl-Set-Object.git /var/lib/mock/f45-build-26229-616/root/chroot_tmpdir/scmroot/perl-Set-Object
Cloning into '/var/lib/mock/f45-build-26229-616/root/chroot_tmpdir/scmroot/perl-Set-Object'...
$ git fetch origin 8e00418b01d59974440723efe9234e1c2569b786:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Set-Object
 * [new ref]         8e00418b01d59974440723efe9234e1c2569b786 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8e00418 Perl 5.44 rebuild