Problems with KService/KBuildSycoca in Comic Dataengine

[Matthias Fuchs]

Hi,

The comic dataengine has some [1] problems with sycoca for quite some time.
That means that sometimes (not reproduceable on every machine and not always 
reproduceable) newly installed comic plugins do not show up or removed comic 
plugins still show up.

Both have to do with KServiceTypeTrader -- the comics are services -- not 
always returning the "correct" services. In both cases probably because it did 
not update them yet.

Now I wonder how I should fix that. Do you have any ideas?
The worst case "solution" would be not relying on KServiceTypeTrader at all 
though I want to avoid that.

[1] Most recent bug on that https://bugs.kde.org/show_bug.cgi?id=278240