[Advanced cbq shell] colon not encoded properly in Predefined Session Parameters

1. Try doing set as follows:
\set hello "user":"password";

2. Then do \set; to see output :
cbq> \set;
Query Parameters :

Named Parameters :

User Defined Session Parameters :

Predefined Session Parameters :
Parameter name : hello

• Value : ["<binary (17 b)>"]*

When colon is encountered, it doesnt get encoded properly.