Read-Host paste dropping letters after F8/F5

Issue Type: Bug

This is similar to fixed bug https://github.com/PowerShell/vscode-powershell/issues/2291 On the original issue it was happening every time Read-Host was used.

Apparently now it happens only if you F8 or F5 (Run anything doesn’t matter) then F8 or F5 again this time with Read-Host and paste something. Random characters from the string pasted will be missed. If you Enter/Ctrl+C between the 2 actions this doesn’t happen.

Extension version: 2020.6.0 VS Code version: Code 1.45.1 (5763d909d5f12fe19f215cbfdd29a91c0fa9208a, 2020-05-14T08:27:35.169Z) OS version: Windows_NT x64 10.0.17763

1591194302-8adf92aa-6105-406f-97ea-3c9013c8ba161591191688507.zip

System Info

Item	Value
CPUs	Intel® Core™ i7-4770 CPU @ 3.40GHz (2 x 3392)
GPU Status	2d_canvas: enabled flash_3d: enabled flash_stage3d: enabled flash_stage3d_baseline: enabled gpu_compositing: enabled multiple_raster_threads: disabled_off oop_rasterization: unavailable_off protected_video_decode: unavailable_off rasterization: unavailable_off skia_renderer: disabled_off_ok video_decode: enabled viz_display_compositor: enabled_on viz_hit_test_surface_layer: disabled_off_ok webgl: enabled webgl2: enabled
Load (avg)	undefined
Memory (System)	2.00GB (0.43GB free)
Process Argv
Screen Reader	no
VM	100%

[ili101]

@andschwa Did some more testing (with the build you mentioned). No problem when using terminal directly without F8/F5. With F8/F5 when typing it will miss the first letter. With F8/F5 when pasting unpredictable.

I think it’s maybe related to https://github.com/PowerShell/vscode-powershell/issues/3881

[andschwa]

Rewrite part 2 coming up?

It happened!!!