ID field missing

[tankerkiller125]

Issue

Switched from standard model to the CachedModel interface and immediately ran into a problem where I could not access the id of an entry if I had done some manual caching previously.

Environment

Laravel Version: 5.5.34
Laravel Model Caching Package Version: 0.2.21
PHP Version: 7.2
Homestead Version: N/A
Operating System & Version: Elementary OS Loki

Stack Trace

No stack trace available 

[tankerkiller125]

This was actually my fault, I specified exactly what columns I wanted and failed to put them in an array.