When changing from a directory containing some files to a subdirectory
which does not have any files in it the information in the status bar of
Dolphin doesn't get updated thus still showing the number of files and
their size of the parent directory. Even reloading by pressing F5
doesn't change this.

This bug can easily reproduced by creating a new directory and changing
to it. I could reproduce it on a AMD64 Debian testing system running
Dolphin 4:4.8.4-2 as well as on a i386 testing system still running
version 4:4.8.4-1.