[Bug 47549] When opening an XML file for a specific application (in this case planner) nautilus complains that the file type is wrong

[John Meuser]

Public bug reported:

Binary package hint: nautilus

When I attempt to open a *.planner file with a double-click, nautilus
sees that it is an XML file.  It refuses to open it with a double-click,
and you must use the open with submenu to open it.  It shouldn't compain
that it is an XML file... since planner uses XML files.

Steps to reproduce the problem:
1. Open up planner, add some stuff, and save it as a .planner file
2. Double-click on the .planner file in nautilus

Actual Results:

Nautilus will complain about the contents and refuse to open it without
using the submenu

Expected Results:

Nautilus should just open the file without complaints... the .planner
extension should be enough.

How often does this happen?

Every time.

** Affects: nautilus (Ubuntu)
       Severity: Normal
       Priority: (none set)
         Status: Unconfirmed

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When opening an XML file for a specific application (in this case planner) nautilus complains that the file type is wrong
https://launchpad.net/bugs/47549