Generally changes made by execution of user code are subject to the Undo command. This also applies if the DataArray of a CellRange is set from BASIC.
However, if by such an action cells that previously were blank get content, the action is not undone insofar.
Even more clearly: Calling Undo (Ctrl+Z) after setting a DataArray by user code previous content that was changed by myRange.SetDataArray() is reinstated. Cells that were blank previously retain the content they got by the action.
Steps to Reproduce:
1. Open the attached example and permit macros.
2. Perform the steps precisely described there.
As already described.
As already described.
User Profile Reset: No
Is this form new? I don't like it.
For all the bugs I reported in the last few years I used a much simpler procedure, and was able to attach my demo file at the same time.
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:59.0) Gecko/20100101 Firefox/59.0
Created attachment 141172 [details]
The example announced in my report
The bug is a (old) regression. It is not heritage and does neither show in V 3.3. of LibreOffice nor in Apache OpenOffice till the current V 4.1.5. The oldest version above 3.3. I could test with was 3.5.2. There the bug is already "implemented".
Repro with file.
Arch Linux 64-bit
Build ID: c8c74a0b4ca6f3a3619f423b6548c80c52392ae0
CPU threads: 8; OS: Linux 4.15; UI render: default; VCL: kde4;
Locale: fi-FI (fi_FI.UTF-8); Calc: group
Built on April 15th 2018
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