[1] mistakenly removed the variable used by the mechanism that was introduced in [2] to avoid updating link content. This commit uses the link's `needLabel` instead to achieve the same goal. Steps to reproduce: - Add a mega menu. - Set the mega menu template to Cards. - Click on the text of a card. - DO NOT click on the edit link icon in the popover. - Click on the href field in the options panel. - Change the value. => Links content was broken (image was removed and texts were grouped). [1]: https://github.com/odoo/odoo/commit/75166dbcd4962f30624fe19829757acbf8e76022 [2]: https://github.com/odoo/odoo/commit/7a0e58f8d7237514d23d815cdf3d81fc79edb1ec task-3300977 X-original-commit: 1dbcf2825b2d495c206e110a39efe620e646e7c4 Part-of: odoo/odoo#121362