In a notebook, unable to save changes to layers with LeafMap

[testlabauto]

System details:

Positron and OS details:

Positron Version: 2024.12.0 (Universal) build 80
OSX

Interpreter details:

Python 3.10.12

Describe the issue:

Using (LeafMap section):
Plots and Widgets Notebook

Unable to save layer edits (see repro steps).

Steps to reproduce the issue:

1. Run the LeafMap section of Plots and Widgets Notebook
2. Draw a rectangle on it
3. Click the trash can icon
4. Click the rectangle
5. Attempt to save changes
6. Note that small popup with Save/Cancel/Clear All does not go away

Expected or desired behavior:

Expected to be able to delete an added layer.

Were there any error messages in the UI, Output panel, or Developer Tools console?

index.html?id=183780…otebookRenderer:332 Uncaught DOMException: Failed to execute 'postMessage' on 'MessagePort': function(t){return t?.properties.style} could not be cloned.
at HostMessaging.postMessage (vscode-webview://1a3g1f34slfks2msbo01jueqa7ivgk56tlpuogagf5008lb6bmj5/index…arentOrigin=vscode-file%3A%2F%2Fvscode-app&purpose=notebookRenderer:332:24)
at (vscode-webview://1a3g1f34slfks2msbo01jueqa7ivgk56tlpuogagf5008lb6bmj5/index…rentOrigin=vscode-file%3A%2F%2Fvscode-app&purpose=notebookRenderer:1314:21)
at doPostMessage (:5:8)
at Object.postMessage (:19:10)
at postNotebookMessage (notebookWebviewPreloads.js:2314:20)
at context.postMessage (notebookWebviewPreloads.js:1550:54)
at yg.postMessage (https://file+.vscode-resource.vscode-cdn.net/Applications/Positron.app/Cont…ources/app/extensions/positron-ipywidgets/renderer/media/index.js:89:11322)
at qc.send (https://file+.vscode-resource.vscode-cdn.net/Applications/Positron.app/Cont…sources/app/extensions/positron-ipywidgets/renderer/media/index.js:89:5769)
at Lo.send (https://file+.vscode-resource.vscode-cdn.net/Applications/Positron.app/Cont…urces/app/extensions/positron-ipywidgets/renderer/media/index.js:73:200705)
at Mo.send (https://file+.vscode-resource.vscode-cdn.net/Applications/Positron.app/Cont…urces/app/extensions/positron-ipywidgets/renderer/media/index.js:73:206759)