Found bug that also breaks Undo

Consider this .ods (Calc) file:

problem_1.ods

When trying to copy and paste the green cell into the cells below, the neighboring cells get damaged.
When trying to Undo, the previous state of the document isn’t restored - thus Undo fails.

Could this bug please be fixed?
My only workaround currently is to copy and paste only one cell at a time which is quite annoying.

Here is a series of screenshot images that illustrates the problem:

More info:

Version: 5.3.7.2 (x64)
Build ID: 6b8ed514a9f8b44d37a1b96673cbbdd077e24059
CPU Threads: 8; OS Version: Windows 6.19; UI Render: default; Layout Engine: new;
Locale: en-US (de_DE); Calc: group

Please report bug at https://bugs.documentfoundation.org/ and attach the sample document there. Thanks.