Unexpected Data Output from MCP2515 on Raspberry Pi 4 with Bookworm Lite (64-bit)

**Issue Description:**

I'm encountering an issue while executing the simple test code from the documentation. The output I'm receiving is not what I expected.

**Setup:**

Hardware: Raspberry Pi 4 with Bookworm Lite (64-bit)
Connection: MCP2515 connected via a logic level converter (also tested without the converter, same result)

Expected Output:

```
Data: "adafruit"
Message ID: 0x1234ABCD
Actual Output:
```
actual output

```
Send success: True
1 message available
Message from 0x121f1f4d
message data: bytearray(b'\xa3\xf5\xc7\x9e?\xef\xf9L')

Send success: True
1 message available
Message from 0x1205624d
message data: bytearray(b'\xd4v\xf7\\?\xe6\xb5L')
```
(repeats several times with the same unexpected data)

Additionally, when I connect another CAN device to the MCP2515 (without loopback mode), I encounter the same result as described in this GitHub issue: [Issue #770](https://github.com/adafruit/Adafruit_Blinka/issues/770).

Has anyone else faced a similar issue or have any insights on what might be going wrong? Any help would be greatly appreciated. Thanks in advance!

Start by reproducing the documented simple test on a Raspberry Pi 4 running Bookworm Lite 64-bit with the MCP2515, comparing the expected and reported CAN output. Review the related Adafruit Blinka issue #770 and the loopback and external-device cases. Done would be a reproducible diagnosis with a documented correction or confirmed limitation.

Written by the indexing model from the issue text.