0.21.1 introduced breaking change for loop

[gmr]

The changes in PR #1255 appears to have broken my previously working template.

Consul Template version

0.21.1 - 0.22.0

Consul Version

1.3.0

Configuration

{{ $range_min := key "loop_min" | parseInt }}{{ $range_max := key "loop_max" | parseInt | add 1 }}{{ range offset := loop $range_min $range_max }} ... 

Expected behavior

Pulling an integer value stored in Consul's KV store and sending it through parseInt should provide a value usable by loop.

Actual behavior

What actually happened?

Upgrading from 0.21.0 to 0.22.0 broke working templates with the following errors:

 [ERR] (cli) /etc/rejected.yaml.ctmpl: execute: template: :35:404: executing “” at <loop $range_min $range_max>: error calling loop: loop: bad argument type: int64

Steps to reproduce

1. Store a min and max value in Consul's KV store
2. Retrieve them and set them to a variable using syntax similar to {{ $range_min := key "loop_min" | parseInt }}
3. Use as an argument in loop

References

Are there any other GitHub issues (open or closed) that should
be linked here? For example:

• literal integer are interpreted as int instead of int64. #1143