[Crash Report]

[Mylonna]

Describe the Crash
Explain clearly what you were doing when the crash occurred.

Steps To Reproduce
Describe precisely how the crash occurred, step by step, starting with a new editor window.

1. Open the Graphite editor at https://editor.graphite.art
2. Had 3 files open, working on 1
3. Was a copied path from one of the other files
4. Saved - Worked Fine
5. Export - Crashes
6. Reload - Export works

Had it happen 4 times now, different file numbers open, but always the one with the path I am copying and an extra.

Additional Details
Provide any further information or context that you think would be helpful in fixing the issue. Screenshots or video can be linked or attached to this issue.

Browser and OS
Firefox 148, Windows 10 or 11

Stack Trace
Copied from the crash dialog in the Graphite editor:

panicked at editor/src/messages/dialog/export_dialog/export_dialog_message_handler.rs:125:99:
called `Option::unwrap()` on a `None` value

Wp/<@https://editor.graphite.art/assets/index-BPxHMP7l.js:988:1384
w@https://editor.graphite.art/assets/index-BPxHMP7l.js:970:73924
handleJsMessage@https://editor.graphite.art/assets/index-BPxHMP7l.js:970:74072
yp/e<@https://editor.graphite.art/assets/index-BPxHMP7l.js:970:74496
ep/o.wbg.__wbg_call_833bed5770ea2041/<@https://editor.graphite.art/assets/index-BPxHMP7l.js:970:14904
Ke@https://editor.graphite.art/assets/index-BPxHMP7l.js:969:6188
ep/o.wbg.__wbg_call_833bed5770ea2041@https://editor.graphite.art/assets/index-BPxHMP7l.js:970:14874
graphite_wasm.wasm._ZN13graphite_wasm10editor_api12EditorHandle27send_frontend_message_to_js17hb921190d4deab3e4E@https://editor.graphite.art/assets/graphite_wasm_bg-BjpNRPYb.wasm:wasm-function[807]:0x44c00d
graphite_wasm.wasm._ZN4core3ops8function2Fn4call17hce3f3ec565af54aaE@https://editor.graphite.art/assets/graphite_wasm_bg-BjpNRPYb.wasm:wasm-function[19280]:0xe83259
graphite_wasm.wasm._ZN3std9panicking20rust_panic_with_hook17he3dc6abfb01fb415E@https://editor.graphite.art/assets/graphite_wasm_bg-BjpNRPYb.wasm:wasm-function[10755]:0xd5f456
graphite_wasm.wasm._ZN4core9panicking9panic_fmt17h808dbde205a89691E@https://editor.graphite.art/assets/graphite_wasm_bg-BjpNRPYb.wasm:wasm-function[15108]:0xdfde2c
graphite_wasm.wasm._ZN4core9panicking5panic17hd2efa669b7ab826eE@https://editor.graphite.art/assets/graphite_wasm_bg-BjpNRPYb.wasm:wasm-function[14567]:0xdf5256
graphite_wasm.wasm._ZN4core6option13unwrap_failed17h314697a0a1a32358E@https://editor.graphite.art/assets/graphite_wasm_bg-BjpNRPYb.wasm:wasm-function[18739]:0xe69632
graphite_wasm.wasm._ZN15graphite_editor8messages6layout13utility_types13layout_widget18DialogLayoutHolder23send_dialog_to_frontend17h47e0ec46f512a826E@https://editor.graphite.art/assets/graphite_wasm_bg-BjpNRPYb.wasm:wasm-function[3351]:0x9c9226
graphite_wasm.wasm._ZN301_$LT$graphite_editor..messages..dialog..dialog_message_handler..DialogMessageHandler$u20$as$u20$graphite_editor..utility_traits..MessageHandler$LT$graphite_editor..messages..dialog..dialog_message..DialogMessage$C$graphite_editor..messages..dialog..dialog_message_handler..DialogMessageContext$GT$$GT$15process_message17h7d2e8de18e682455E@https://editor.graphite.art/assets/graphite_wasm_bg-BjpNRPYb.wasm:wasm-function[734]:0x3fccde
graphite_wasm.wasm._ZN3std6thread5local17LocalKey$LT$T$GT$4with17h2ff9d597868cd633E@https://editor.graphite.art/assets/graphite_wasm_bg-BjpNRPYb.wasm:wasm-function[4879]:0xaf533a
graphite_wasm.wasm._ZN13graphite_wasm10editor_api12EditorHandle19widget_value_update17h05622066a71b4373E@https://editor.graphite.art/assets/graphite_wasm_bg-BjpNRPYb.wasm:wasm-function[3019]:0x96a615
graphite_wasm.wasm.editorhandle_widgetValueCommitAndUpdate externref shim multivalue shim@https://editor.graphite.art/assets/graphite_wasm_bg-BjpNRPYb.wasm:wasm-function[15111]:0xdfe11c
widgetValueCommitAndUpdate@https://editor.graphite.art/assets/index-BPxHMP7l.js:970:6185
action@https://editor.graphite.art/assets/index-BPxHMP7l.js:1012:80330
U@https://editor.graphite.art/assets/index-BPxHMP7l.js:1012:56910
pe@https://editor.graphite.art/assets/index-BPxHMP7l.js:1012:59491
i@https://editor.graphite.art/assets/index-BPxHMP7l.js:1012:51084
at/<@https://editor.graphite.art/assets/index-BPxHMP7l.js:17:1178
at@https://editor.graphite.art/assets/index-BPxHMP7l.js:17:1165
k@https://editor.graphite.art/assets/index-BPxHMP7l.js:1012:12957

[Annonnymmousss]

Can you please try it in https://dev.graphite.art/ once?

[0HyperCube]

Duplicate of #3576.