$ git clone -n https://src.fedoraproject.org/rpms/perl-HTTP-Request-Form.git /var/lib/mock/f45-build-24031-601/root/chroot_tmpdir/scmroot/perl-HTTP-Request-Form
Cloning into '/var/lib/mock/f45-build-24031-601/root/chroot_tmpdir/scmroot/perl-HTTP-Request-Form'...
$ git fetch origin be7332c1c5b39d916c01df1c43c46f916e50a2e1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-HTTP-Request-Form
 * [new ref]         be7332c1c5b39d916c01df1c43c46f916e50a2e1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at be7332c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild