Hello all,
we are using Handsontable in a React app and currently upgrading it from 12.1.2 to 14.0.0, and we are encountering some errors which weren’t happening before:
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The first one we could recreate in attached demo. You can see that the values in the ‘Year’ column are not displayed, but if we remove the value of the ‘mergeCells’ property, then the ‘Year’ column values are displayed as expected (But we don’t get the first column merged, as required for us).
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The second issue we could not reproduce it in this demo, but in this same situation of the demo, in our app it will also throw the following exception (also screenshot attached):
Cannot assign to read only property 'grapes' of object '#<Object>’
Note that we are nowhere sitting properties as readonly.
We have checked the migration guides to the upgrade we did, and no changes you made seems to refer to this part.
Working version demo in 12.1.2: https://jsfiddle.net/0v5q7rc8/
Same demo in 14.0.0: https://jsfiddle.net/kmwpL1vx/1/
Thank you
