I am trying to push changes to a project I am contributing to. I have permissions to commit to the project and has a valid account in bitbucket. I am getting the below error while pushing the changes. Appreciate help on fixing this.

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It started working after adding the below to repo specific hgrc file
based on the suggestion here
certificate was changed on jan 19, 2012
Bitbucket’s SSL certificates are changing on March 6, 2014