.fodt's template-related xml elements, in good condition?

Writer 7.6.latest for Linux
In use: .odt, custom .ott, later on: master and subdocs

In .fodt created from existing document I find following xml elements.
I wonder if these are in good condition because the link template to child documents is still not working, yet establishing the link template-document from scratch using Template Changer does not help.
Is xlink:type attribute expected to have value ‘simple’?

meta:template
path=/office:document/office:meta/meta:template
 Attributes:
   xlink:actuate="onRequest"
   xlink:href="../Templates/our%20Mission/ct-Prj114.ott"
   xlink:title="ct-Prj114"
   xlink:type="simple"

config:config-item
path=/office:document/office:settings/config:config-item-set/config:config-item
 Attributes:
  config:name="UpdateFromTemplate"
  config:type="boolean"

If to create .odt from one of Writer stock templates and save it to .fodt then the xml-element meta:template has meta:date attribute which is missing in case of my document created from custom template. May it be the reason of the link template-document to be not functional?