Using a pipe symbol in an "unexpected" place in a field definition (e.g. in a parser function call) breaks the form.

E.g. for a form collecting geographic regions the following field definition should just pass on the value for the parameter "structure" to the input type:
{{{field|Part of|input type=menuselect|structure= {{ #generateTree:property=Part of|display=Long name }} }}}

Version: unspecified
Severity: normal