Select all - Misleading UI

In the new UI, if a filter is applied and you click 'select all', all elements in the document are selected, but the screen only shows the filtered elements.

Steps to reproduce

1. Filter document in a way that shows only some of the available elements
2. At the bottom of the grid it will say 'X images hidden by search filter'
3. Click 'select all'
4. An additional message will appear stating 'including X selected images'
5. Export the selection (you will see that everything is exported)

This is quite misleading behaviour, as it appears from the grid that only your filtered set is selected. I am familiar with the UI and I found the behaviour unexpected and did not notice the message at the bottom (I thought that the select all count was bugged initially). The message at the end of the list is likely to be missed if the grid expands beyond the bottom of the browser.

Screenshot:

Suggestions to fix

1. Change 'Select All' to 'Select All in Document' (as this is effectively all that the button does).
2. Ammend so that 'Select All' only selects what has been filtered.