This behaviour contradicts with description found in docs (in which
<source> tag specify interface in host, not in container). I think,
the previous bridge must be specified as
<interface type='bridge'>
<mac address='00:16:3e:34:21:9e'/>
- <source bridge='eth10'/>
+ <target dev='eth10'/>
</interface>
You are right. It is bug.
Well, here is the patch, that fixes that behaviour.
Your patch is half of fix. It require to fix openvzReadNetworkConf() in
openvz_conf.c.
P.S. Are someone going to implement
<interface type='bridge'>
...
<source bridge="...">
...
</interface>
part of openvz driver? :)
I plan to implement it in a month.
It will be fine if you are ready to develop the feature.