Don't delete text prompt when credits run out

When credits are used up in the middle of a chat, there is a popup to purchase more credits (OK, no problem). But after completing the purchase, the text prompt is gone! If it was a long or complex prompt, it is difficult to recreate. The prompt should go back into the chat so after purchasing more credits one can just press Enter or the submit button to re-send. Currently it clears the contents of the prompt box after purchasing credits, so annoying.