Integers less than -2^63 aren't compressed losslessly

[kirkrodrigues]

Bug

Compressing a log with an integer less than -2^63 (e.g., -2^63 - 1) results in the integer being set to -2^63.

CLP version

583fdde

Environment

• Ubuntu 20.04

Reproduction steps

• Create a log with an integer smaller than -2^63, e.g., "This number is very negative: -9223372036854775810"
• Compress the log
• Decompress it and you'll see that the message has been decompressed as: "This number is very negative: -9223372036854775808"