TruthHun/BookStack: controllers/api/CommonController.go; 5 LoC

Found a possible issue in [TruthHun/BookStack](https://www.github.com/TruthHun/BookStack) at [controllers/api/CommonController.go](https://github.com/TruthHun/BookStack/blob/944cf8aba0553f822aa81d87d230cf72b1081411/controllers/api/CommonController.go#L750-L754)

Below is the message reported by the analyzer for this snippet of code. Beware that the analyzer only reports the first issue it finds, so please do not limit your consideration to the contents of the below message.

>

[Click here to see the code in its original context.](https://github.com/TruthHun/BookStack/blob/944cf8aba0553f822aa81d87d230cf72b1081411/controllers/api/CommonController.go#L750-L754)

Click here to show the 5 line(s) of Go which triggered the analyzer.

```go
for _, book := range books {
book.Cover = this.completeLink(utils.ShowImg(book.Cover, "cover"))
utils.CopyObject(&book, &list)
lists = append(lists, list)
}

```

Click here to show extra information the analyzer produced.

```
No path was found through the callgraph that could lead to a function which writes a pointer argument.

No path was found through the callgraph that could lead to a function which passes a pointer to third-party code.

root signature {CopyObject 2} was not found in the callgraph; reference was passed directly to third-party code
```

Leave a reaction on this issue to contribute to the project by classifying this instance as a **Bug** :-1:, **Mitigated** :+1:, or **Desirable Behavior** :rocket:
See the descriptions of the classifications [here](https://github.com/github-vet/rangeclosure-findings#how-can-i-help) for more information.

commit ID: 944cf8aba0553f822aa81d87d230cf72b1081411

Start with controllers/api/CommonController.go at lines 750-754 and inspect the range over books, utils.CopyObject, and the surrounding API code. Compare the analyzer's finding with the actual behavior, then classify it as Bug, Mitigated, or Desirable Behavior; the issue provides no failing test or expected code change.

Written by the indexing model from the issue text.