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Picking up one of the entries from Christian Gruen's portmanteau bug 27180: UCA-collation-022 (...version=7.0) Result: FOCH0002 Expecting no error, as version 7.0 is already published I wouldn't expect an error anyway. Also see the comment on UCA-collation-022a <modified by="Christian Gruen" on="2015-01-27" change="minor version number limited to smaller value"/> I can't see what reasoning is being applied here. My reading of the spec is that if a specific version of UCA is requested, then (a) if fallback=yes, or fallback is absent, the system should use the requested version of UCA if available, or fallback to a different version otherwise. This is irrespective of whether a version of UCA with that specific version number actually exists. (b) if fallback=no, the system must either use the requested version of UCA, or fail with FOCH0002. Obviously if no UCA version has been published with the requested version number then the first option is not possible, so FOCH0002 is inevitable.
WG decision is to change the second argument of the test UCA-collation-022, UCA-collation-022a and UCA-collation-023 to 'xyz' to avoid implementation defined results: i.e. case-blind
Fix applied in the test cases UCA-collation-022a and UCA-collation-023.