Page cache mix for full page & partial page request

When page cache is enabled on virtualhost/mount level, between a full page and partial page request the first one will be cached and served for all subsequent requests.

Please find attached an archetype with the reproduction.

Reproduction scenario 1:

1. Make a request to http://localhost:8080/site/events
2. Make a request to http://localhost:8080/site/events./main

Expected result after step 2: see the events page without header, footer and styling. 

Actual result: same response from step 1

Reproduction scenario 2:

1. Make a content or hst configuration change to flush the cache.
2. Make a call to http://localhost:8080/site/events./main
3. Make a call to http://localhost:8080/site/events

Expected result after step 3: see the events page with a header, footer and styling. 

Actual result: same response from step 2

Reproduction scenario 3 (not in provided archetype):

1. Make a content or hst configuration change to flush the cache.
2. Make a call to http://localhost:8080/site/events./main
3. Make a call to http://localhost:8080/site/events./head

Expected result after step 3: see the events page head

Actual result: same response from step 2

DefaultRequestInfoCacheKeyFragmentCreator#create line 65
requestInfo.append(request.getRequestURI()).append(delim);

request.getRequestURI for both urls in all examples it returns /site/events