$ git clone -n https://src.fedoraproject.org/rpms/php-pear-Mail.git /var/lib/mock/f40-build-2022894-46855/root/chroot_tmpdir/scmroot/php-pear-Mail
Cloning into '/var/lib/mock/f40-build-2022894-46855/root/chroot_tmpdir/scmroot/php-pear-Mail'...
$ git fetch origin d4616e9567d5a4e36502eb550a226ad3d50a5e74:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-pear-Mail
 * [new ref]         d4616e9567d5a4e36502eb550a226ad3d50a5e74 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d4616e9 v1.6.0