Fix issue with proxied clientlib

[pcastelog]

No description provided.

[coveralls]

Pull Request Test Coverage Report for Build 6408

• 4 of 4 (100.0%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.002%) to 56.471%

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Totals
Change from base Build 6396:	0.002%
Covered Lines:	16681
Relevant Lines:	29539

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💛 - Coveralls

[kwin]

@pcastelog Thanks for the PR. Can you add a changelog entry and a test for this?

[henrykuijpers]

@kwin I think it is very important to get this issue pushed in very quickly. The entire functionality is broken now (for us, mainly on author, since we have no /etc/map entries there).

[pcastelog]

I added the requested changes

• Test for the case of resolving a clientlib with resourceResolver
• Changelog