The REST API Explorer in SQL API section points to the wrong Endpoint

Using ACS 6.1 with Alfresco Search & Insight Engine

Issue while querying with search SQL REST API in REST API explorer in ACS 6.1 with Insight Engine results in a error 404 framework.exception.notfound
In the Alfresco.log we see

2019-01-03 13:43:19,334 ERROR [extensions.webscripts.AbstractRuntime] [http-nio-8080-exec-7] Exception from executeScript: 00030000 {0} was not found
alfresco_1 | org.alfresco.rest.framework.core.exceptions.NotFoundException: 00030000 {0} was not found

The problem is the REST API Explorer in SQL API section points to the wrong Endpoint. 
Endpoint directed on REST API Explorer in SQL API section is: http://localhost:8080/alfresco/api/-default-/public/search/versions/1/sql/sql 

The correct Endpoint should be http://localhost:8080/alfresco/api/-default-/public/search/versions/1/sql 

Steps to reproduce

Setup:
ACS using Docker

Steps:
1. Navigate to: http://localhost:8080/api-explorer/#!/sql
2. Specify the query body:

{
  "stmt": "select * from alfresco"
}

3.

Error:

404 response is returned as the request url is incorrect.

Request url appears to be:

http://localhost:8080/alfresco/api/-default-/public/search/versions/1/sql/sql it should be:

http://localhost:8080/alfresco/api/-default-/public/search/versions/1/sql

Expected behaviour

Search results should be displayed

Actual behaviour

Results in an error 404 framework.exception.notfound