Wrong alias pattern when importing taxonomy terms - orchardcms

Question

I'm trying to leverage Import/Export module to import taxonomies and taxonomy terms like so
<Orchard>
<Data>
<Taxonomy Id="/Identifier=Product-Categories" Status="Published">
<AutoroutePart Alias="eshop/categories" UseCustomPattern="false" />
<IdentityPart Identifier="Product-Categories" />
<TitlePart Title="Product Categories" />
<TaxonomyPart TermTypeName="ProductCategoriesTerm" />
</Taxonomy>
<ProductCategoriesTerm Id="/Identifier=Category-1" Status="Published">
<AutoroutePart UseCustomPattern="false" />
<IdentityPart Identifier="Category-1" />
<TitlePart Title="Test category" />
<TermPart Count="0" Selectable="true" Weight="1" TaxonomyId="/Identifier=Product-Categories" Path="" />
</ProductCategoriesTerm>
</Data>
</Orchard>
ProductCategoriesTerm when created through dashboard has default pattern
{Content.Container.Path}/{Content.Slug} ### my-taxonomy/my-term/sub-term
but importing terms makes them to use just {Content.Slug} ... How do I instruct AutoroutePart to use the default pattern? Tried UseCustomPattern="false" or exclude AutoroutePart with no effect it's just test-category instead of eshop/categories/test-category and won't regenerate even if if I set AutouroutePart to automatically regenerate when editing content and disable custom patterns and it won't revert to default pattern even if I try to publish it through dashboard.
Also it's mandatory to include "Count" for the TermPart when importing, does it affect anything? Sounds like something that should be dynamic and relevant only with export.

Answer 1

When importing taxonomy terms (and I guess any other part that has a container) it's necessary to specify Container for the common part. Without it Container for the part is null and therefore can't resolve {Content.Container.Path} in the alias pattern.
<CommonPart Container="/Identifier=Product-Categories" />
Or if it's nested term then Container is the parent term.