$ git clone -n https://src.fedoraproject.org/rpms/openexr.git /var/lib/mock/f40-build-1178875-21861/root/chroot_tmpdir/scmroot/openexr
Cloning into '/var/lib/mock/f40-build-1178875-21861/root/chroot_tmpdir/scmroot/openexr'...
$ git fetch origin 88dd891222e3be7bdbbb4572d2cfa167e2c16ad0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/openexr
 * [new ref]         88dd891222e3be7bdbbb4572d2cfa167e2c16ad0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 88dd891 Fix SPDX license