$ git clone -n https://src.fedoraproject.org/rpms/perl-B-Hooks-EndOfScope.git /var/lib/mock/f45-build-21832-588/root/chroot_tmpdir/scmroot/perl-B-Hooks-EndOfScope
Cloning into '/var/lib/mock/f45-build-21832-588/root/chroot_tmpdir/scmroot/perl-B-Hooks-EndOfScope'...
$ git fetch origin f9062293297a86bde0cdee6a74fad4fa6bdc1203:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-B-Hooks-EndOfScope
 * [new ref]         f9062293297a86bde0cdee6a74fad4fa6bdc1203 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f906229 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild