Version
1.6.1
Environment
All
Reproduction link

Steps to reproduce
Create an with an with a value that has an empty string.
What is expected?
The dropdown should show the label for the empty option with the same height as all other options.
What is actually happening?
The height of the empty option is minimal, and it is hard to see.
Adding a non-breaking space corrects the behaviour. This should be done automatically.