Disable JavaScript and click a Reply button on a Flow page, e.g. http://ee-flow.wmflabs.org/w/index.php?title=Talk:Sandbox&topic_postId=rpjlq7sbdswo8mjw&workflow=rpjlq7s9tmhzsdv0&action=reply , and you get a status 400 error page
The action specified by the URL is invalid ... [dc92b61d] /w/index.php?title=Sandbox&topic_postId=rph87lzl1y8c56i4&workflow=rph87lzgdkxe4mcs&action=reply Exception from line 80 of /srv/mediawiki/extensions/Flow/includes/View.php: Unrecognized get action: reply
The quiet gray Reply button is redundant since each one is followed by an inline textarea with a [Reply] button, which works fine. We should pick one or the other, I vote for the quiet Reply button since all those textareas make Flow boards hard to read if you have JS disabled.
On mediawiki.org, instead of exception details and backtrace I see a pink errorbox, I assume that's a configuration difference in how errors are reported.
Version: master
Severity: minor
URL: http://ee-flow.wmflabs.org/w/index.php?title=Talk:Sandbox&topic_postId=rpjlq7sbdswo8mjw&workflow=rpjlq7s9tmhzsdv0&action=reply