Uncaught TypeError: Cannot read property 'current' of undefined

[Enter steps to reproduce:]

1. ...
2. ...

**Atom**: 1.57.0 x64
**Electron**: 9.4.4
**OS**: Ubuntu 20.04.3
**Thrown From**: [ide-python](https://github.com/lgeiger/ide-python) package 1.9.7

### Stack Trace

Uncaught TypeError: Cannot read property 'current' of undefined

```
At /home/henadzi/.atom/packages/ide-python/node_modules/react-dom/cjs/react-dom.production.min.js:250

TypeError: Cannot read property 'current' of undefined
at Pj (/packages/ide-python/node_modules/react-dom/cjs/react-dom.production.min.js:250:24)
at Tj (/packages/ide-python/node_modules/react-dom/cjs/react-dom.production.min.js:250:104)
at Lj (/packages/ide-python/node_modules/react-dom/cjs/react-dom.production.min.js:243:163)
at Jg (/packages/ide-python/node_modules/react-dom/cjs/react-dom.production.min.js:237:175)
at lk (/packages/ide-python/node_modules/react-dom/cjs/react-dom.production.min.js:285:27)
at /packages/ide-python/node_modules/react-dom/cjs/react-dom.production.min.js:289:301
at Xj (/packages/ide-python/node_modules/react-dom/cjs/react-dom.production.min.js:244:244)
at tk (/packages/ide-python/node_modules/react-dom/cjs/react-dom.production.min.js:289:287)
at Object.exports.render (/packages/ide-python/node_modules/react-dom/cjs/react-dom.production.min.js:296:69)
at HTMLElement.connectedCallback (/packages/atom-ide-console/node_modules/@atom-ide-community/nuclide-commons-ui/ReactMountRootElement.js:64:23)
at HTMLElement.activeItemChanged (/app.asar/src/pane-element.js:152:22)
at Function.simpleDispatch (/snap/atom/282/usr/share/atom/resources/app/static/:11:1186190)
at Emitter.emit (/snap/atom/282/usr/share/atom/resources/app/static/:11:1187631)
at Pane.setActiveItem (/snap/atom/282/usr/share/atom/resources/app/static/:11:458810)
at Pane.activateItem (/snap/atom/282/usr/share/atom/resources/app/static/:11:461058)
at DebuggerLayoutManager._appendItemToDock (/packages/atom-ide-debugger/dist/ui/DebuggerLayoutManager.js:323:20)
at DebuggerLayoutManager._addPaneContainerToWorkspace (/packages/atom-ide-debugger/dist/ui/DebuggerLayoutManager.js:648:10)
at DebuggerLayoutManager.showDebuggerViews (/packages/atom-ide-debugger/dist/ui/DebuggerLayoutManager.js:593:44)
at /packages/atom-ide-debugger/dist/main.js:412:24)
at CommandRegistry.handleCommandEvent (/snap/atom/282/usr/share/atom/resources/app/static/:11:352215)
at CommandRegistry.dispatch (/snap/atom/282/usr/share/atom/resources/app/static/:11:350690)
at BreakpointDisplayController._handleGutterClick (/packages/atom-ide-debugger/dist/BreakpointDisplayController.js:316:25)
```

### Commands

```
-0:48 application:open-folder (div.tool-panel.tree-view)
2x -0:29.8.0 run:file (input.hidden-input)
-0:05.3.0 debugger:show (atom-workspace.workspace.scrollbars-visible-always.theme-one-light-syntax.theme-one-light-ui)
```

### Non-Core Packages

```
atom-django 0.3.2
atom-i18n 0.26.1
atom-ide-base 3.4.0
atom-ide-code-format 1.0.2
atom-ide-console 0.0.2
atom-ide-datatip 0.25.0
atom-ide-debugger 0.0.3
atom-ide-definitions 0.4.2
atom-ide-hyperclick 1.0.11
atom-ide-markdown-service 2.1.0
atom-ide-outline 3.2.0
atom-ide-signature-help 0.16.0
atom-live-server 2.3.0
atom-python-run 0.9.7
atom-runner 2.7.1
autocomplete-paths 2.17.0
busy-signal 2.0.1
code-peek 1.4.21
css-spy 0.6.0
data-atom 0.29.1
dbg 1.6.3
emmet 2.4.3
git-plus 8.7.1
henadzi undefined
ide-python 1.9.7
intentions 2.1.1
linter 3.4.0
linter-flake8 2.4.0
linter-php 1.6.1
linter-python-pep8 0.2.0
linter-ui-default 3.4.1
linter-ui-plus 0.3.2
output-panel 0.3.4
platformio-ide-terminal 2.10.1
python-stero 0.2.0
quick-query-sqlite 0.4.1
script 3.32.2
TabNine 4.0.7
```

Các bước tái hiện đang bị thiếu, vì vậy trước tiên hãy tái hiện flow debugger:show đã được báo cáo sau run:file và một lần nhấp vào gutter trên Atom 1.57.0 với ide-python 1.9.7. Đọc các vị trí trong stack ở react-dom.production.min.js, ReactMountRootElement.js, pane-element.js và DebuggerLayoutManager.js, đặc biệt là các entry point được liệt kê. Hoàn thành khi chế độ xem debugger mở mà không có TypeError chưa được bắt.

Do mô hình lập chỉ mục viết ra từ nội dung của issue.