Comment 3 for bug 1898478

This is still not working when the block is changed but the page is not reloaded.
For testing:

- Have a block in a page
- edit the page and click on the configuration of the block
- set the Retractable field as 'No'
- save and reload the page
- click on the configuration button for the block again and set the Retractable field to 'yes' and save
- click on the retract arrow on the block

The block content is hidden but the block is not being resized leaving an empty block with the same size it had before being collapsed
There is another bug report to fix this issue https://bugs.launchpad.net/mahara/+bug/1898809