Activity tab always restored after rotation instead of current

1. Select issues tab.
2. Rotate the telephone.
3. Activity tab restored instead of issues.

https://gitlab.com/terrakok/gitlab-client/blob/develop/app/src/main/java/ru/terrakok/gitlabclient/ui/main/MainFlowFragment.kt

selectTab(
            when (currentTabFragment?.tag) {
                eventsTab.screenKey -> eventsTab
                issuesTab.screenKey -> eventsTab
                mrsTab.screenKey -> eventsTab
                todosTab.screenKey -> eventsTab
                else -> eventsTab
            }