metadata: fix check for existing objects

Don't process files with EXCLUDE_OBJECT_DEFINE gcode
commands.

Signed-off-by:  Eric Callahan <arksine.code@gmail.com>

moonraker/components/file_manager/metadata.py

@@ -137,7 +137,10 @@ class BaseSlicer(object):
                            data: str,
                            pattern: Optional[str] = None
                            ) -> bool:
-        match = re.search(r"\nDEFINE_OBJECT NAME=", data)
+        match = re.search(
+            r"\n(DEFINE_OBJECT)|(EXCLUDE_OBJECT_DEFINE) NAME=",
+            data
+        )
         if match is not None:
             # Objects alread processed
             return False