[REG 4.15.1 -> 5.0] Array ordering is not numerical when using CDB

The following string:

const char str[] = "Hello Qt World!"; 

is displayed like that in the watch window (ordering is alphabetic instead numeric):

A short test showed that the array ordering is correct (i.e. 1, 2, 3, ... 9, 10, 11) when using GDB instead CDB. So that looks like a backend problem.