How can I allow pasting from other apps on iPad?

Annoying message: [App name] would like to paste from [different app]. Do you want to allow this? With the choices "Don't allow paste" and "Allow paste."

Solution: It looks like the work around to this issue is to paste from the keyboard's "paste icon" instead of just tapping and pasting from the submenu that immediately appears under the tapped spot of your screen.

The keyboard's "paste icon" on iPad is the third from the left upper corner of the keyboard when you have it horizontal (landscape). But if you have it upright (portrait) you will have to tap first on the undo arrow with three dots to access it.

It works for me. I don't have this issue on iPhone though.

[Re-Titled by Moderator]

Original Title: Allow to paste from other apps