fix: [BUG] # character accumulation in markdown frontmatter tags prop (#79)

src/basic_memory/utils.py

@@ -138,15 +138,23 @@ def parse_tags(tags: Union[List[str], str, None]) -> List[str]:
 
     Returns:
         A list of tag strings, or an empty list if no tags
+    
+    Note:
+        This function strips leading '#' characters from tags to prevent 
+        their accumulation when tags are processed multiple times.
     """
     if tags is None:
         return []
 
+    # Process list of tags
     if isinstance(tags, list):
-        return tags
+        # First strip whitespace, then strip leading '#' characters to prevent accumulation
+        return [tag.strip().lstrip('#') for tag in tags if tag and tag.strip()]
 
+    # Process comma-separated string of tags
     if isinstance(tags, str):
-        return [tag.strip() for tag in tags.split(",") if tag.strip()]
+        # Split by comma, strip whitespace, then strip leading '#' characters
+        return [tag.strip().lstrip('#') for tag in tags.split(",") if tag and tag.strip()]
 
     # For any other type, try to convert to string and parse
     try:  # pragma: no cover