[HTCondor-users] Copying user.cc Kerberos credentials cache inside the sandbox?

[CMV <ciprian.vizitiu@xxxxxxxxxxxxxxx>]

A 25.5 and Kerberos enabled cluster using UidDomain and FileSystemDomain 
forwards the kerberos ticket to the execution node all right, I can see 
the ticket being renewed in SEC_CREDENTIAL_DIRECTORY_KRB on the 
execution node yet, although StarterLog.Slot1_1 claims that

StarterLog.slot1_1:01/21/26 15:37:41 (pid:130006) CREDS: configuring job 
to use KRB5CCNAME /var/lib/condor/execute/dir_130006/scratch/username.cc

... writing to shared storage won't work and job gets immediately held; 
if only because the folder /var/lib/condor/execute/dir_130006/ doesn't 
exist (not to mention 
/var/lib/condor/execute/dir_130006/scratch/username.cc) so the piece 
which is supposed to create the scratch folder is not functioning.

Which piece of the puzzle is supposed to create the scratch folder and, 
more importantly, obtain and write the kerberos credentials cache in there?