You appear to have version 4.7.4 of Okular, but version 4.8.3 of kdelibs. (That is possible, because kdelibs is backwards-compatible, so an older Okular on a newer kdelibs should always work.) The bug and its fix are in Okular, not in kdelibs, so the Okular version is the one that matters.
You appear to have version 4.7.4 of Okular, but version 4.8.3 of kdelibs. (That is possible, because kdelibs is backwards- compatible, so an older Okular on a newer kdelibs should always work.) The bug and its fix are in Okular, not in kdelibs, so the Okular version is the one that matters.