Reproduction steps:
1. Open the user’s project
2. In the Hierarchy window expand Example assets and select Props
3. Select the Text Input field
4. With the right-hand press different keys to fill the text field while with the left hand repeatedly press cmd + s.

Reproducible with: 2020.3.35f1

Notes:
- only managed to reproduce the crash once
- may crash when editing other fields
- having some tasks in the background may help reproducing the crash

First few lines of the stacktrace:
#0 0x007ff808128112 in __pthread_kill
#1 0x007ff8080aad10 in abort
#2 0x007ff80811b0b2 in abort_message
#3 0x007ff80810c1fd in demangling_unexpected_handler()
#4 0x007ff8080096de in _objc_terminate()
#5 0x007ff80811a4d7 in std::__terminate(void (*)())
#6 0x007ff80811cf3b in __cxa_rethrow
#7 0x007ff808012f17 in objc_exception_rethrow
#8 0x007ff80afa2be7 in __33-[NSApplication runModalSession:]_block_invoke_2
#9 0x007ff80afa2b56 in __33-[NSApplication runModalSession:]_block_invoke