$ git clone -n https://src.fedoraproject.org/rpms/perl-HTML-DOMbo.git /var/lib/mock/f45-build-23865-599/root/chroot_tmpdir/scmroot/perl-HTML-DOMbo
Cloning into '/var/lib/mock/f45-build-23865-599/root/chroot_tmpdir/scmroot/perl-HTML-DOMbo'...
$ git fetch origin 89c90dd792e903f4a29802ba4b9a4f6175397987:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-HTML-DOMbo
 * [new ref]         89c90dd792e903f4a29802ba4b9a4f6175397987 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 89c90dd Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild