$ git clone -n https://src.fedoraproject.org/rpms/perl-PerlIO-via-Timeout.git /var/lib/mock/f45-build-25843-613/root/chroot_tmpdir/scmroot/perl-PerlIO-via-Timeout
Cloning into '/var/lib/mock/f45-build-25843-613/root/chroot_tmpdir/scmroot/perl-PerlIO-via-Timeout'...
$ git fetch origin 04235fdc51daba1a63a7ef867eebc060692130f1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-PerlIO-via-Timeout
 * [new ref]         04235fdc51daba1a63a7ef867eebc060692130f1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 04235fd Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild