Does changing Samba idmap backend to rid affect existing file ownership?

Issue

• The following configuration is implemented in the Samba configuration file /etc/samba/smb.conf, for an environment using Samba Winbind and a single domain in Microsoft Active Directory.

  idmap config * : range = 10000-999999
  idmap config * : backend = tdb
  

• If the configuration file is modified to create separate domains and the backend is changed to rid, will the owner and group of existing files be maintained?

  idmap config * : range = 10000-999999
  idmap config * : backend = tdb
  idmap config DOMAIN1 : range = 1000000-19999999
  idmap config DOMAIN1 : backend = rid
  idmap config DOMAIN2 : range = 20000000-21000000
  idmap config DOMAIN2 : backend = rid