To replicate, create a status called "Won't fix", and try to view the help page (click the help icon next to Issue Types, for example):

http://localhost:8080/secure/ShowConstantsHelp.jspa?decorator=popup

The page rendering breaks with:

Cause:
java.lang.IllegalArgumentException: missing matching end quote for query: Won't fix

Stack Trace: [hide]

java.lang.IllegalArgumentException: missing matching end quote for query: Won't fix
at webwork.util.Query.throwIllegalArgumentException(Query.java:606)
at webwork.util.Query.findMatchingQuote(Query.java:573)
at webwork.util.Query.splitQuery(Query.java:481)
at webwork.util.Query.(Query.java:124)
at webwork.util.Query.getQuery(Query.java:34)
at webwork.util.ValueStack.findValue(ValueStack.java:173)
at webwork.view.taglib.WebWorkBodyTagSupport.findValue(WebWorkBodyTagSupport.java:61)
at webwork.view.taglib.ui.ComponentTag.doEndTag(ComponentTag.java:154)
at org.apache.jsp.secure.showconstantshelp_jsp._jspService(org.apache.jsp.secure.showconstantshelp_jsp:701)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)