$ git clone -n https://src.fedoraproject.org/rpms/cyrus-sasl.git /var/lib/mock/f42-build-867423-175505/root/chroot_tmpdir/scmroot/cyrus-sasl
Cloning into '/var/lib/mock/f42-build-867423-175505/root/chroot_tmpdir/scmroot/cyrus-sasl'...
$ git fetch origin 93c4dfc72e4551725f52b09efc8e64076bf02f46:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cyrus-sasl
 * [new ref]         93c4dfc72e4551725f52b09efc8e64076bf02f46 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 93c4dfc Rebuilt for the bin-sbin merge (2nd attempt)