Grooming update :

Module X declare Container A, child container B
Module X imports Module Y

Module Y declares Container C, child container D

A
+B
  +C
    +D

XPath without prefix /A/B/C/D

Our current solution, only adds very first Module Prefix:    X:A/B/C/D  but in a very inefficient manner

Future (proper) solution should had at each module chance a prefix:   X:A/B/Y:C/D

Scope of bug-fix: Fix the performance issue by decouple the SQL-Query for all fragments form the implementation to get the prefix for the TOP level Fragment

A/C

1. Functionality unchanged, see scenarios 1 & 2 below

2. De-coupling can only be checked as code-review

Out of scope

1. Insertion of prefix for different modules (separate:  Jira CPS-1301) 

Scenario 1. get for actual top-level container (with children). Note the insertoint of 'stores:' prefix (only for bookstore)

Scenario 2. get for any child-container (with children). Note the insertion of 'stores:' prefix (only for 'inventory')