$ git clone -n https://src.fedoraproject.org/rpms/zabbix.git /var/lib/mock/f39-build-1491670-34522/root/chroot_tmpdir/scmroot/zabbix
Cloning into '/var/lib/mock/f39-build-1491670-34522/root/chroot_tmpdir/scmroot/zabbix'...
$ git fetch origin 43e1780e364af8d4b8b2bec9c03eb946b5e06c92:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/zabbix
 * [new ref]         43e1780e364af8d4b8b2bec9c03eb946b5e06c92 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 43e1780 Update to 6.0.22