inc/collectd.inc.php: don't group type instances when snmp + if_octets

The snmp plugin is saving if_octets this way:
<host>/snmp/if_octets-<port>.rrd

Where the interfaces plugin is saving if_octets with this structure:
<host>/interface-<port>/if_octets.rrd

1 files changed, 4 insertions, 1 deletions

diff --git a/inc/collectd.inc.php b/inc/collectd.inc.php
index 1df8bb0..c906aaf 100644
--- a/inc/collectd.inc.php
+++ b/inc/collectd.inc.php
@@ -119,7 +119,10 @@ function group_plugindata($plugindata) {
         foreach ($plugindata as $item) {
                 # backwards compatibility
                 if ($CONFIG['version'] >= 5 || !preg_match('/^(df|interface)$/', $item['p']))
-                        if($item['p'] != 'libvirt')
+                        if (
+                                $item['p'] != 'libvirt' &&
+                                ($item['p'] != 'snmp' && $item['t'] == 'if_octets')
+                        )
                                 unset($item['ti']);
                 $data[] = $item;
         }