Replace dialog: Replace button should only be enabled when the text being searched is selected
- Open the Replace dialog
- Enter some text in the "Find" and "Replace with" fields (the Replace button should be disabled)
- Press Find (the Replace button should now be enabled)
- Close the dialog
- Select a different subtitle (which doesn't contain the text being searched)
- Open the Replace dialog again. The Replace button should be disabled, and only enabled after we Find the text again.