[REF-2101] rx.input(default_value='test') does not work

[vhunyad]

To Reproduce
rx.input(default_value='test')

Specifics (please complete the following information):

• Python Version: 3.9.2
• Reflex Version: 0.4.2
• OS: debian 11
• Browser (Optional):

_REF-2101

[vhunyad]

It does not even work in your example here: https://reflex.dev/docs/library/overlay/dialog/