Change Details

**Steps to replicate the issue**: Run `pwb wikibase_tests -v TestWikibaseParser` of https://gerrit.wikimedia.org/r/c/pywikibot/core/+/297637 **What happens?**: The test fails due to this assert statement in api.Request.submit(): ``` assert isinstance(result[key], str), \ 'Unexpected {}: {!r}'.format(key, result[key]) ``` but the result[key] is valid: ``` result[key] [{'raw': 'Not a quantity', 'error': 'ValueParsers\\ParseException', 'error-info': 'Malformed quantity', 'expected-format': 'quantity', 'messages': [{'name': 'wikibase-parse-error-quantity', 'parameters': [], 'html': {'*': 'Der Mengenwert ist ungültig.'}}]}] <class 'list'> E ```

**Steps to replicate the issue**: Run `pwb wikibase_tests -v TestWikibaseParser` of https://gerrit.wikimedia.org/r/c/pywikibot/core/+/297637 **What happens?**: The test fails due to this assert statement in api.Request.submit(): ``` The assert statement was introduced in rPWBCd179b13 assert isinstance(result[key], str), \ 'Unexpected {}: {!r}'.format(key, result[key]) ``` but the result[key] is valid: ``` result[key] [{'raw': 'Not a quantity', 'error': 'ValueParsers\\ParseException', 'error-info': 'Malformed quantity', 'expected-format': 'quantity', 'messages': [{'name': 'wikibase-parse-error-quantity', 'parameters': [], 'html': {'*': 'Der Mengenwert ist ungültig.'}}]}] <class 'list'> E ```

**Steps to replicate the issue**: Run `pwb wikibase_tests -v TestWikibaseParser` of https://gerrit.wikimedia.org/r/c/pywikibot/core/+/297637 **What happens?**: The test fails due to this assert statement in api.Request.submit(): ``` The assert statement was introduced in rPWBCd179b13 assert isinstance(result[key], str), \ 'Unexpected {}: {!r}'.format(key, result[key]) ``` but the result[key] is valid: ``` result[key] [{'raw': 'Not a quantity', 'error': 'ValueParsers\\ParseException', 'error-info': 'Malformed quantity', 'expected-format': 'quantity', 'messages': [{'name': 'wikibase-parse-error-quantity', 'parameters': [], 'html': {'*': 'Der Mengenwert ist ungültig.'}}]}] <class 'list'> E ```