[Bug]: Inconsistency in the behavior between native and non-native tokens during the process of switching tokens

[sleepytanya]

Describe the bug

An inconsistency in the behavior between native and non-native tokens during the process of switching tokens.

1. User sends a native token: when a user changes the destination token from native to non-native and then back to simple send, the destination value is retained
2. User sends non-native token: if the same actions as above are performed with a non-native origin token, the token amount is not preserved upon switching back to a simple send

Expected behavior

Screenshots/Recordings

Native token:

native.mov

Non-native token:

nonNative.mov

Steps to reproduce

1. Start send+swap transaction
2. Select non-native token as an origin
3. Switch destination token to any other token and then back to initially selected token
4. Notice the destination value is 0

Error messages or log output

No response

Version

latest send+swap build

Build type

None

Browser

Chrome

Operating system

MacOS

Hardware wallet

No response

Additional context

No response

Severity

No response

[Aliba22]

Good

[sleepytanya]

Latest v12.0.0 build [https://github.com/MetaMask/metamask-extension/commit/eebc4d5b2284024eaeb190cddfa89990f593ca34]

Consistent behavior while selecting tokens for all ERC20 tokens.

BNB Chain:

bnb.mov

Mainnet:

mainnet.mov