[Samba] Is there any problem that can arise from remapping gidNumber?

[John Lewis]

This morning I remapped gidNumber from primaryGroupID to gidNumber. I
did that because I could not change the integer in primaryGroupID wit
ldbedt as root.

I mapped to to a new attribute called gidNumber which has no specific
meaning in samba. Is there any potential problems that can arise from
doing that. Is there a better way to fix that problem?