Last modified: 2013-08-29 21:50:11 UTC
Possibly related to wider issues; to investigate.
{{echo|foo<!--bar-->quux}} serialises correctly to: <p about="#mwt1" typeof="mw:Transclusion" data-mw="{"target":{"wt":"echo","href":"./Template:Echo"},"params":{"1":{"wt":"foo<!--bar-->quux"}}}" data-parsoid="{"dsr":[0,26,null,null],"src":"{{echo|foo<!--bar-->quux}}"}">fooquux</p> but then round trips back to: {{echo|fooquuxbar-->quux}} where the '<' has been replaced by the contents after the comment.
Related URL: https://gerrit.wikimedia.org/r/70063 (Gerrit Change I0af5889e7bccd0f659df9d4aa1feba9d977d1871)
https://gerrit.wikimedia.org/r/70063 (Gerrit Change I0af5889e7bccd0f659df9d4aa1feba9d977d1871) | change APPROVED and MERGED [by jenkins-bot]
Fixed. Will be deployed later today.