Under ELYWEB-163 changes were made as if a URL was used that contained escaped characters in the query string the escape sequence was escaped again invalidating the query string

Specifically the % used to map to an ASCII character was itself mapped to %25.

ELYWEB-252 is revisiting this as if there is a disallowed character in the path it is causing URI creation to fail which is leading to subsequent NullPointerExceptions being reported.

This issue is to add a test case for ELYWEB-163 to detect for regressions as we also fix ELYWEB-252.