Bugs, especially ones with reasonably decent backtraces as you have there, should be reported at bugs.kde.org so they can be investigated by the developers.

The "undefined" and other parameters you are mentioning seem to be fairly clear indicators of bugs to me, or severe inconsistency in your setup at the very least.

You are right, I should report it to bugs.kde.org, but I wanted to wait until KDE 4.10.2 arrives[due to this commit 569f79c60f..].

Today upgrade arrived and both issues are solved.
Bug on bugs.kde.org related to this thread: 314830..

Related to OpenSuse 12.3 only, part of 4.10.2 upgrade is blocked(probably temporary) by dependency of kdebase4-workspace-branding-openSUSE(12.3-249.2), replacement this package by kdebase4-workspace-branding-upstream allows to complete 4.10.2 upgrade.