User-Agent:       Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36
(KHTML, like Gecko) Chrome/64.0.3282.140 Safari/537.36 Edge/17.17134
Build Identifier: 

Using ext3 on partitions /boot and /.
Creating new users with yast works as long as yast assignes the UID on its own
one after the other beginning with 1000.
On the other hand, the command
 # useradd -u 1022 -g 100 -m -d /home/testuser testuser
works fine.
Trying to assing a specific UID during the creation prozess results in an error
and the HOME directory will not be created.


Reproducible: Always

Steps to Reproduce:
1. Start yast or yast2
2. Start creating a new user
3. Chose a specific UID below or above 1000 (e.g. 1022)
4. The user is created and will be usable but missing a HOME directory.

Actual Results:  
The user will be created but his HOME directory not.
The Message is:
"Error. Cannot create home directory /home/<username>. Parent directory is not
a Btrfs volume."

Expected Results:  
YaST should create the HOME directory too, like it did all versions before
openSUSE Leap 15.1

I did the Online Update, tested several new installations and reboots, but 
this behavior is reproducible with yast1 and yast2.