Update JavaHg
This is the MercurialEclipse counterpart to JavaHg issue 67.
The issue occurs at the JavaHg level, and a solution requires an update to the JavaHg version used.
The update will also solve the collateral issue of MercurialEclipse not decoding the topic name when a topic is started off a draft commit that is itself on another topic.
Edited by Amenel Voglozin