Uncaught TypeError: Cannot read property 'applyChoice' of undefined

1. I opened a CSV file and closed the pane without choosing any choice.

**Atom**: 1.16.0 x64
**Electron**: 1.3.13
**OS**: elementary OS
**Thrown From**: [tablr](https://github.com/abe33/atom-tablr) package 1.8.3

### Stack Trace

Uncaught TypeError: Cannot read property 'applyChoice' of undefined

```
At /home/ahmed/.atom/packages/tablr/lib/csv-editor-element.js:105

TypeError: Cannot read property 'applyChoice' of undefined
at requestAnimationFrame (/packages/tablr/lib/csv-editor-element.js:105:17)
```

### Commands

```
-0:08.7.0 pane:close (div.setting-title)
```

### Non-Core Packages

```
atom-beautify 0.29.23
atom-jinja2 0.6.0
atom-typescript 11.0.3
autocomplete-python 1.8.63
busy-signal 1.4.1
emmet 2.4.3
emmet-simplified 2.5.0
emmet-snippets-compatibility 1.0.6
intentions 1.1.2
javascript-snippets 1.2.1
jupyter-notebook 0.0.9
linter 2.1.4
linter-ui-default 1.2.3
odoo-snippets 0.3.0
platformio-ide-terminal 2.5.0
python-indent 1.0.2
python-tools 0.6.9
tablr 1.8.3
todo-show 1.11.0
turbo-javascript 1.4.0
```