For ChangeInfo it is expected that all labels from the
'permitted_labels' field are contained in the 'labels' field. If this
was not the case the UI failed with the following error:
SEVERE: Exception caught: (TypeError) : Cannot read property 'values' of undefined
Class$S471: Exception caught: (TypeError) : Cannot read property 'values' of undefined
at Unknown.Throwable_2(gerrit_ui-0.js)
...
Caused by: Class$S171: (TypeError) : Cannot read property 'values' of undefined
at Unknown.$_values(gerrit_ui-0.js)
at Unknown.$values_0(gerrit_ui-0.js)
at Unknown.$valueSet(gerrit_ui-0.js)
at Unknown.renderLabels(gerrit_ui-0.js)
at Unknown.ReplyBox(gerrit_ui-0.js)
at Unknown.onReply_2(gerrit_ui-0.js)
...
This error prevents posting of replies on a change.
Although this should never happen, the UI should not fail like this.
Hence handle this case. This means the voting buttons for this label
would be missing, but at least posting a reply (other labels,
comments) is still working.
Change-Id: I27d3ce0784028c332378f6a390ab48d906fe35ea
Signed-off-by: Edwin Kempin <ekempin@google.com>