Publisher imple's isDocumentExists() check includes document source type and that cause issues.

[rmsamitha]

There is an issue in API documentation update publisher impl. When trying to update the document source type it checks whether the API exists with the updating doc info. This brings an issue as the isDocumentExists function compares also the document source type (INLINE/URL/FILE). This returns false always as the document source type is changed now. So whenever we try to update a document source type, it throws an exception saying the document doesn't exist. isDocumentExist() method obviously doesn't need to check the document source type. Checking for other unique values is sufficient.