[kmail2] [Bug 357820] New: kmail pegs the cpu when started from Firefox

[via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=357820

            Bug ID: 357820
           Summary: kmail pegs the cpu when started from Firefox
           Product: kmail2
           Version: 5.1
          Platform: Kubuntu Packages
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: kdepim-bugs at kde.org
          Reporter: mgolden at mitchgolden.com

As is the default in Kubuntu, I have kmail configured as the application for
mailto links.  When I click on such a link, it does open kmail, and kmail seems
to function normally, but the CPU is pegged.  When I do a ps, I can determine
that the command line is

/usr/bin/kmail -qwindowtitle  mailto:the.persons at emailaddress.com

However if I type the same command line at the shell, it starts (sending a
bunch of messages to the screen) and then behaves normally with no excessive
CPU use.

I should point out that I am running Kubuntu 15.10, and this is kmail2 version
5.0.2, which is not a choice in the dropdown above.


Reproducible: Always

Steps to Reproduce:
1. Open Firefox
2. Click a mailto link
3. Open a shell, type "top"

Actual Results:  
100% CPU use (on one core, presumably)

Expected Results:  
Not a lot of CPU use.

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