$ git clone -n https://src.fedoraproject.org/rpms/perl-Protocol-HTTP2.git /var/lib/mock/f45-build-25947-613/root/chroot_tmpdir/scmroot/perl-Protocol-HTTP2
Cloning into '/var/lib/mock/f45-build-25947-613/root/chroot_tmpdir/scmroot/perl-Protocol-HTTP2'...
$ git fetch origin 23b0191dd8194074f4b07ec861a7b7b84e243fff:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Protocol-HTTP2
 * [new ref]         23b0191dd8194074f4b07ec861a7b7b84e243fff -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 23b0191 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild