Bug#825215: Blocked by upstream licensing issues?

[Christopher Huhn <c.huhn@gsi.de>]

Hi,

the bug meta-data says:

> Forwarded to https://github.com/mattermost/mattermost-server/issues/4176
> Summary: Blocked by upstream licensing issues.

These seem related but are apparently unrelated - the github issue does 
not mention any license problems, just missing go dependencies.

Is this meta-data info obsolete or am I missing the relevant information?

The mattermost release cycle is very short with half-yearly ESR releases 
with 9 month support.
How would this fit in the Debian release model?
Would security fixes be backported?

Cheers

Christopher