Panel widgets not working with fast async/ await functions

[MarcSkovMadsen]

panel==0.14.2

I'm trying to add documentation on using Dask. Currently working on Async. I can see that the Terminal writes the same line twice when await is triggered right after terminal.write.

import panel as pn
import asyncio
import time
pn.extension("terminal", sizing_mode="stretch_width")

submit_button = pn.widgets.Button(name="Submit")

terminal = pn.widgets.Terminal(height=300, )

@pn.depends(submit_button, watch=True)
async def _handle_click(_):
    terminal.write(f"-----\n")
    terminal.write(f"start\n")
    
    # time.sleep(0.05)
    await asyncio.sleep(0.02)
    
    terminal.write(f"end\n")

component = pn.Column(
    submit_button,
    terminal,
).servable()

I would expect start to be written to the terminal once for every button click. Instead its written twice.

If you uncomment the line # time.sleep(0.05) I only get start written once per click.

[MarcSkovMadsen]

Here is a similar example using a Button.

import asyncio
import panel as pn

pn.extension()


submit_button = pn.widgets.Button(name="Submit")
@pn.depends(submit_button, watch=True)
async def _click(_):
    submit_button.disabled=True
    
    await asyncio.sleep(0.01)

    submit_button.disabled=False
    

submit_button.servable()

After clicking once I would expect the button to be enabled. But it is disabled

If I increase the sleep delay to 0.25 I don't see this problem.