Newly created tags are not selected/showing after closing and reopening dialog

Hello community,

I've been trying to wrap my head around the tagfield and all of its nuances and discovered a couple of issues that may be bugs. Either that or I'm not understanding how tags work.

Here's my dialog markup for the tagfield:

<themeTags
    jcr:primaryType="nt:unstructured"
    sling:resourceType="cq/gui/components/coral/common/form/tagfield"
    cq:hideOnEdit="{Boolean}false"
    cq:showOnCreate="{Boolean}true"
    allowBulkEdit="{Boolean}true"
    autocreateTag="{Boolean}true"
    fieldDescription="Enter the theme tags"
    fieldLabel="Theme Tags"
    multiple="{Boolean}true"
    rootPath="/content/cq:tags/themes"
    name="./themes">
    <granite:data
        jcr:primaryType="nt:unstructured"
        cq-msm-lockable="cq:tags"/>
</themeTags>

The hope is to allow the author to create new tags and have it usable by other authors in other pieces of content.

I can create a new tag by typing in some value. Let's use `Weather` as an example.

I save the dialog, and see it in CRX:

But I do not see it in the tag manager area:

Also, when reopening the dialog, i do not see the tag i just created even though it exists in CRX:

That's one issue. The other issue is that I can create a theme for everyone to see in tag manager area by entering the tag like this: "Themes : Weather". it gets created on the dialog:

When I save it, it appears in CRX:

I see it in the tag selector:

and in tag manager:

but when I reopen the dialog, there are no tags selected. I have to open the tag selector and select the newly created tag in order to save it. It then shows up in CRX like this:

and then finally properly shows up in the dialog when i close and reopen:

I tried creating a new tag using the lowercase/no whitespace syntax and the system rejected it when I tried to save:

I feel like custom tags that don't use the namespace prefix should automatically pick up the path specified in the dialog property and inject the tag properly AND display it as being selected (in the grey box under the input field). Also, it seems to me that if I create a new tag with the proper namespace, it should also be selected  by default without having to re-open the dialog, select the tag that I just created, and then save it again. There seems to be a disconnect there.