ENH: JsonSchemaExporter accepts do_not_create parameter.

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For #116 (closed) Insert a meaningful description for this merge request here: What is the new/changed behavior? Which bug has been fixed? Are there related issues?

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• All automated tests pass
• Reference related issues
• Up-to-date CHANGELOG.md (or not necessary)
• Up-to-date JSON schema (or not necessary)
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src/caosadvancedtools/json_schema_exporter.py

@@ -33,7 +33,8 @@ def _make_required_list(rt: db.RecordType):
             if rt.get_importance(prop.name) == db.OBLIGATORY]
 
 
-def _make_prop_from_prop(prop: db.Property, additional_options_for_text_props: Optional[dict], units_in_description: bool):
+def _make_prop_from_prop(prop: db.Property, additional_options_for_text_props: Optional[dict],
+                         units_in_description: bool):
     """Return the JSON Schema segment for the given property
 
     Parameters
@@ -54,6 +55,8 @@ def _make_prop_from_prop(prop: db.Property, additional_options_for_text_props: O
             "Reference properties are not supported in this version of the json schema exporter."
         )
 
+    if not additional_options_for_text_props:
+        additional_options_for_text_props = {}
     if prop.datatype == db.TEXT or prop.datatype == db.DATETIME:
         text_format = None
         text_pattern = None
@@ -111,7 +114,19 @@ def _make_text_property(description="", text_format=None, text_pattern=None):
         prop["description"] = description
     if text_format is not None:
         if isinstance(text_format, list):
-            prop["anyOf"] = [{"format": tf} for tf in text_format]
+            # We want the type inside the options, not in the head:
+            # "datetime property": {
+            #   "anyOf": [
+            #     {
+            #       "type": "string",
+            #       "format": "date"
+            #     },
+            #     {
+            #       "type": "string",
+            #       "format": "date-time"
+            #     }]}
+            prop.pop("type")
+            prop["anyOf"] = [{"type": "string", "format": tf} for tf in text_format]
         else:
             prop["format"] = text_format
     if text_pattern is not None: