$ git clone -n https://src.fedoraproject.org/rpms/php-pecl-redis5.git /var/lib/mock/f41-build-side-1-2795250-32718/root/chroot_tmpdir/scmroot/php-pecl-redis5
Cloning into '/var/lib/mock/f41-build-side-1-2795250-32718/root/chroot_tmpdir/scmroot/php-pecl-redis5'...
$ git fetch origin 35df3667b4fe91c08f112606c6a65d99b747cc15:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-pecl-redis5
 * [new ref]         35df3667b4fe91c08f112606c6a65d99b747cc15 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 35df366 obsoleted by php-pecl-redis6