Move existing nhs orgs without branding onto nhs branding

This is done to make self-service branding easier to implement,
and also because NHS branding makes much more sense for services
in those orgs than GOV.UK branding.

migrations/versions/0368_move_orgs_to_nhs_branding_.py

@@ -0,0 +1,32 @@
+"""
+
+Revision ID: 0368_move_orgs_to_nhs_branding
+Revises: 0367_add_reach
+Create Date: 2022-04-12 18:22:12.069016
+
+"""
+from alembic import op
+
+revision = '0368_move_orgs_to_nhs_branding'
+down_revision = '0367_add_reach'
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.execute("""
+        UPDATE
+            organisation
+        SET
+            email_branding_id = 'a7dc4e56-660b-4db7-8cff-12c37b12b5ea'
+        WHERE
+            organisation_type IN ('nhs_central', 'nhs_local', 'nhs_gp')
+        AND
+            email_branding_id IS NULL
+    """)
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    pass
+    # ### end Alembic commands ###