Exporting stock history: Uncaught TypeError: p is null

[cheseo]

Bug description

When trying to export stock history, this error shows up in console.

Steps to reproduce

1. Go to https://demo-git.partkeepr.org/
2. Click on any part
3. Go to Stock History
4. Click Export->Export Grid->CSV
5. See error on Console

Expected behavior

Expected to see csv output of stock history

Observed behavior

Javascript error:

Uncaught TypeError: p is null
    defaultRenderer https://demo-git.partkeepr.org/js/compiled/extjs.js:22
    exportGrid https://demo-git.partkeepr.org/js/compiled/main2.js:1178
    onCSVExport https://demo-git.partkeepr.org/js/compiled/main2.js:1261
    callback https://demo-git.partkeepr.org/js/compiled/extjs.js:22
    onClick https://demo-git.partkeepr.org/js/compiled/extjs.js:22
    onClick https://demo-git.partkeepr.org/js/compiled/extjs.js:22
    fire https://demo-git.partkeepr.org/js/compiled/extjs.js:22
    fire https://demo-git.partkeepr.org/js/compiled/extjs.js:22
    publish https://demo-git.partkeepr.org/js/compiled/extjs.js:22
    publishDelegatedDomEvent https://demo-git.partkeepr.org/js/compiled/extjs.js:22
    doDelegatedEvent https://demo-git.partkeepr.org/js/compiled/extjs.js:22
    onDelegatedEvent https://demo-git.partkeepr.org/js/compiled/extjs.js:22
    Function https://demo-git.partkeepr.org/js/compiled/extjs.js:22
extjs.js:22:1840992
    defaultRenderer https://demo-git.partkeepr.org/js/compiled/extjs.js:22
    exportGrid https://demo-git.partkeepr.org/js/compiled/main2.js:1178
    onCSVExport https://demo-git.partkeepr.org/js/compiled/main2.js:1261
    callback https://demo-git.partkeepr.org/js/compiled/extjs.js:22
    onClick https://demo-git.partkeepr.org/js/compiled/extjs.js:22
    onClick https://demo-git.partkeepr.org/js/compiled/extjs.js:22
    fire https://demo-git.partkeepr.org/js/compiled/extjs.js:22
    fire https://demo-git.partkeepr.org/js/compiled/extjs.js:22
    publish https://demo-git.partkeepr.org/js/compiled/extjs.js:22
    publishDelegatedDomEvent https://demo-git.partkeepr.org/js/compiled/extjs.js:22
    doDelegatedEvent https://demo-git.partkeepr.org/js/compiled/extjs.js:22
    onDelegatedEvent https://demo-git.partkeepr.org/js/compiled/extjs.js:22
    Function https://demo-git.partkeepr.org/js/compiled/extjs.js:22

This is error on Firefox 102.11.0esr. Chrome has slightly better error reporting, although i don't have it installed now to post

System Information

Partkeepr-demo

• Reproducible on the demo system: Yes.