$ git clone -n https://src.fedoraproject.org/rpms/rbenv.git /var/lib/mock/f43-build-58963687-6569496/root/chroot_tmpdir/scmroot/rbenv
Cloning into '/var/lib/mock/f43-build-58963687-6569496/root/chroot_tmpdir/scmroot/rbenv'...
$ git fetch origin b765411eb3b023b888caa963e79179d2a33885bf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rbenv
 * [new ref]         b765411eb3b023b888caa963e79179d2a33885bf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b765411 Update to 1.3.2 - Closes rhbz#2331229