Action-createtiddler and using parameters for tags

Hi TW-Community,

I struggling with the usage of paramenter from a procedure within action-createtiddler
Situation:
I have this wunderful global procedure to create a tiddler named by parameter and also tagged by the same parameter:

code-body: yes
tags: $:/tags/Global
title: tryout/new_entry

\procedure new-entry(selector, sep)

  \procedure new-tiddler()
    <$wikify name="title" text=`<<unusedtitle baseName:"$(selector)$" separator:"$(sep)$" startCount:"01" template:"$basename$$separator$$count:2$">>`>
    <$action-createtiddler $basetitle=<<title>> tags=<<selector>> >
      <$action-navigate $to=<<createTiddler-title>>/>
    </$action-createtiddler>
  </$wikify>
  \end new-tiddler

<$button actions=<<new-tiddler>> >
{{$:/core/images/plus-button}} <<selector>>
</$button>
\end

If I call this procedure from a New Tiddler with <<new-entry "Department" "/">> and press the button a Tiddler will be generated with title Department/02 and tag Department.

I have also this procedures to edit fields.
In my use case the generated Tiddler Department/02 with tag Department will recognized by the ViewTemplate and the procedure <<edit_fields "Department" "caption Name Location">> is called.
Also fine, everthing as expected.
As you see I give the user the possibility to generate a new location if there is another Tiddler available with the tag Location. The button appear. Also fine.
If I now press this Button to generate a new Location what is the same procedure as I am using in the New Tiddler, the new Tiddler will be generated with title Location/02 but the tag is not Location as expected it is <<field>>.
I do not understand why the same procedure is doing the right and in another usage not :thinking:
The call of <<new-entry [[<<field>>]] "/">> is generating a Tiddler with title Location/02 what explains that the parameter selector has the right value Location but will not be used with tags=<<selector>>.

tags: $:/tags/ViewTemplate
title: tryout/ViewTemplate

<%if [<currentTiddler>tag[Asset]] %>
<<edit_fields "Asset" "caption Name Department Location">>
<%elseif [<currentTiddler>tag[Department]] %>
<<edit_fields "Department" "caption Name Location">>
<%elseif [<currentTiddler>tag[Location]] %>
<<edit_fields "Location" "caption Name country zip city">>
<% endif %>
code-body: yes
tags: $:/tags/Global
title: tryout/edit_fields

\whitespace trim
\procedure edit_fields(selector, fields)
<$let
	config=<<currentTiddler>>
>
Please enter the data for the &nbsp; <<selector>> &nbsp;:&nbsp; {{!!caption}}.<br>
The origin name of this Data set is:  &nbsp; <<config>>.<br>
<table>
	<$list filter="[enlist<fields>]" variable="field">
	<tr>
		<th><<field>></th>
		<td>
			<$select field=<<field>> default=<<field>> >
				<option value="">(any)</option>
				<$list filter="[tag<selector>sort[caption]get<field>] [tag<field>get[caption]sort[]]+[unique[]]" variable="value">
					<option><<value>></option>
				</$list>
			</$select>
		</td>
		<td>
		 <$edit-text tiddler=<<field_of_field>> field=<<field>>/>
		</td>
		<td>
         <$list filter="[tag<field>count[]]" variable="c_of_field">
           <%if [<c_of_field>compare:number:gt[0]] %>
             <<new-entry [[<<field>>]] "/">>
           <% endif %>
         </$list>
		</td>
	</tr>
	</$list>
</table>
\end

ANY HELP IS WELCOME
Stefan