Street turns but street name is kept

Please redirect since the this topic already exists (I did not find a similar one here).

Here is the place at which the problem exists: http://www.openstreetmap.org/?lat=52.13 … 68&zoom=18

The street labeled "Alter Postweg" is continued across a sunk curb. At this point is a switch from

highway=residential

to

highway=unclassified

.

If you keep on driving at the street "Alter Postweg" you experience a turn. Otherwise, if you are driving from "Alter Postweg" to "Sudetenstraße" it is as you are not switching the street.

Is there any relation dealing with this problem?

Note: I experienced the problem while following the OSMAND navigation application for ANDROID.