Steps to reproduce:
1. Open and build User-supplied project ("InputFieldException.zip")
2. Focus the Input field and type as fast as possible.
3. Check the caret.
4. (Optional) after writing a lot of text quickly, start deleting the text and notice the "ArgumentOutOfRangeException. Selection is out of range." errors

Expected: notice the extra characters appearing after the caret position.
Actual: the caret is always at the end of the string.

Reproduced in 2018.4.24f1, 2019.3.15f1, 2019.4.1f1, 2020.1.0b13, 2020.2.0a14

Notes:
Watch the user-supplied video for a reference of reproduction
Sometimes deleting the entire string will lead to a couple of characters being displayed after the caret
Repro with "Hide mobile input" on and off, but way more consistent when using "Hide mobile input"

Repro on:
VLNQA00021, Samsung Galaxy S7 (SM-G930F), Android 8.0.0, CPU: Exynos 8 Octa 8890, GPU: Mali-T880
VLNQA00121, Samsung Galaxy S9 (SM-G960F), Android 9, CPU: Exynos 9 Series 9810, GPU: Mali-G72
VLNQA00277, Asus ROG Phone (ASUS_Z01QD), Android 8.1.0, CPU: Snapdragon 845 SDM845, GPU: Adreno (TM) 630

No repro on:
Win 10 Editor.
Win 10 Standalone.
iPad 7th gen (iOS 13.2.2)