Blank cells are skipped when copied from Excel

[takotakot]

Describe the bug
Tables containing blank cells are not treated correctly.

To Reproduce
Steps to reproduce the behavior:

1. Copy a table which contains blank cells
2. Paste

Expected behavior
See Screenshots

Screenshots
Excel:

Current behavior:

Expected:

Desktop (please complete the following information):

• OS: Windows 10
• Browser: Chrome
• Version: 68.0.3440.106

Additional context

• Gutenberg 3.5.0
• WordPress 4.9.8

Ref: Block audit: Table #8398

[arunsathiya]

Noting that I am able to reproduce this as well, on Gutenberg 4.0.0.

^{Image from Google Sheets indicating that row 2, column 2 has no value}

^{Image from Gutenberg post editor indicating that a cell is missing, at row 2, column 2}

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Tested on a local install of WordPress. WordPress 4.9.8 and Gutenberg 4.0.0 using Google Chrome Version 69.0.3497.92 (Official Build) (64-bit) on macOS 10.14 - Mac OS Mojave

[dromero20]

I can replicate the issue by copying a Google Docs Excel and pasting it in Gutenberg too.

Tested in Firefox 63.0.1 (64-bit). macOS 10.14.
Gutenberg: 4.5.1
WordPress: 4.9.8

[sourourn]

I was able to reproduce this issue by copying from Excel and pasting into Gutenberg.

Firefox (61.0.2) on MacOS
WordPress version: 4.9.8
Gutenberg version: 4.5.1

[ellatrix]

Should be fixed (#14137).