fix: clear converted ids at the beginning of each OME instance

src/ome_types/_mixins/_ids.py

@@ -12,7 +12,10 @@
 AUTO_SEQUENCE: Final = "__auto_sequence__"
 # map of id_name -> max id value
 ID_COUNTER: dict[str, int] = {}
+
 # map of (id_name, id_value) -> converted id
+# NOTE: this is cleared in OMEMixin.__init__, so that the set of converted IDs
+# is unique to each OME instance
 CONVERTED_IDS: dict[tuple[str, str], str] = {}
 
 

src/ome_types/_mixins/_ome.py

@@ -4,6 +4,7 @@
 from typing import TYPE_CHECKING, Any, cast
 
 from ome_types._mixins._base_type import OMEType
+from ome_types._mixins._ids import CONVERTED_IDS
 
 if TYPE_CHECKING:
     from pathlib import Path
@@ -13,6 +14,8 @@
 
 class OMEMixin:
     def __init__(self, **data: Any) -> None:
+        # Clear the cache of converted IDs, so that they are unique to each OME instance
+        CONVERTED_IDS.clear()
         super().__init__(**data)
         self._link_refs()