[webkit-gtk] attachments on bugs.gentoo.org crash midori

[Grant]

Opening an attachment in a bug report on bugs.gentoo.org sometimes
crashes midori, but I don't seem to have the same problem in epiphany.
 I get this in dmesg:

midori[13836]: segfault at 70b ip 00007f92323a05cc sp 00007fff43b5b8c8
error 4 in libwebkitgtk-3.0.so.0.19.10[7f9231aa8000+1c82000]

Here is an attachment:

https://490812.bugs.gentoo.org/attachment.cgi?id=364602

Command line midori
Midori 0.5.6 ((null))
GTK+ 3.8.7 (3.8.7) Glib 2.36.4 (2.36.4)
WebKitGTK+ 2.2.2 (2.2.2) libSoup 2.42.3.1
cairo 1.12.14 (1.12.14) libnotify 0.7.5
gcr 3.8.2 granite No
Platform X11; Linux x86_64
Identification Mozilla/5.0 (X11; Linux) AppleWebKit/538.1 (KHTML, like
Gecko) Chrome/18.0.1025.133 Safari/538.1 Midori/0.5
Video Formats H264 [x]   Ogg Theora [x]   WebM [x]

- Grant