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Bug
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Resolution: Invalid
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P4: Low
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None
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5.6
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None
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Linux/X11
I didn't find a good title 
Consider the following MIME definitions:
<?xml version="1.0" encoding="utf-8"?> <mime-info xmlns="http://www.freedesktop.org/standards/shared-mime-info"> <mime-type type="application/x-ole-storage"> <magic><!-- higher priority than the parent magic --> <match value="abcd" type="string" offset="0:200"/> </magic> </mime-type> <mime-type type="application/msword"> <sub-class-of type="application/x-ole-storage"/> <generic-icon name="x-office-document"/> <glob pattern="*.doc"/> <alias type="application/vnd.ms-word"/> <alias type="application/x-msword"/> </mime-type> <mime-type type="application/foo.doc"> <alias type="application/msword"/> <alias type="application/vnd.ms-word"/> <alias type="application/x-msword"/> <glob pattern="*.doc" weight="60"/> </mime-type> </mime-info>
And the following file "something.doc"
abcd a foo.doc file
Use the "QMimeDatabase::mimeTypeForFileName("something.doc")" result "application/foo.doc"
Use the "QMimeDatabase::mimeTypeForData(...)" result "application/x-ole-storage"
Use the "QMimeDatabase::mimeTypeForFileNameAndData("something.doc", ...)" result "application/x-ole-storage"
Because it is known by alias that "application/foo.doc" is equivalent to "application/msword", "QMimeDatabase::mimeTypeForFileNameAndData" can return better results: "application/foo.doc"