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10ac2ec446
In Hugo `0.49` we improved type support in `slice`. This has an unfortunate side effect in that `resources.Concat` now expects something that can resolve to `resource.Resources`.
This worked for most situations, but when you try to `slice` different `Resource` objects, you would be getting `[]interface {}` and not `resource.Resources`. And `concat` would fail:
```bash
error calling Concat: slice []interface {} not supported in concat.
```
This commit fixes that by simplifying the type checking logic in `Slice`:
* If the first item implements the `Slicer` interface, we try that
* If the above fails or the first item does not implement `Slicer`, we just return the `[]interface {}`
Fixes #5269
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| cast | ||
| collections | ||
| compare | ||
| crypto | ||
| data | ||
| encoding | ||
| fmt | ||
| images | ||
| inflect | ||
| internal | ||
| lang | ||
| math | ||
| os | ||
| partials | ||
| path | ||
| resources | ||
| safe | ||
| strings | ||
| templates | ||
| time | ||
| tplimpl | ||
| transform | ||
| urls | ||
| template.go | ||