[Android] Descriptor checksum mismatch

[Czino]

On rare occasions after a new install, the error Descriptor checksum mismatch is thrown.

The workaround at the moment is to reinstall the app and the error won't appear anymore using the same private key.

[notmandatory]

If this issue is related to how bdk validates checksum, as of the bdk_wallet 1.0 release we now use the rust-bitcoin lib for verifying descriptor checksums, see bitcoindevkit/bdk#1523. However I'm not aware of any descriptor checksum bugs in pre-1.0 bdk or bdk-ffi so still worth digging into the bdk-rn code to make sure this issue wasn't introduced somehow there.

[notmandatory]

This sort of issue can also come up if the "hardened index" indicator using a single quote ' vs h which produce different checksums. Or when the single quote is interpreted in the shell or maybe code as ending a string, JS has it's own interesting rules for how strings are delimited. See bitcoindevkit/bdk#1050#issuecomment-1658428482.

[notmandatory]

Also if you have any steps to reproduce the issue that would be the most helpful.