Epiphany 2.14.3, Ubuntu 6.06

Upon restarting Epiphany after a crash, one window showed a yellow Gecko XML error:

XML Parsing Error: not well-formed
Location: https://launchpad.net/products/launchpad/+bugs?field.searchtext=product+page&orderby=-importance&search=Search&field.status%3Alist=Unconfirmed&field.status%3Alist=Confirmed&field.status%3Alist=In+Progress&field.status%3Alist=Needs+Info&field.status%3Alist=Fix+Committed&field.assignee=&field.owner=&field.omit_dupes=on&field.has_patch=&field.has_no_package=
Line Number 27, Column 98:<p>The page “https://launchpad.net/products/launchpad/+bugs?field.searchtext=product+page&orderby=-importance&search=Search&field.status%3Alist=Unconfirmed&field.status%3Alist=Confirmed&field.status%3Alist=In+Progress&field.status%3Alist=Needs+Info&field.status%3Alist=Fix+Committed&field.assignee=&field.owner=&field.omit_dupes=on&field.has_patch=&field.has_no_package=” in this tab was not fully loaded yet when the web browser crashed; it could have caused the crash.</p>
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It seems that any "&" character in the URL isn't being escaped.