`export_local` creates file with double file extension

[cb1kenobi]

Bug Summary

When filename is specified, it appends .json regardless if the file already has the extension

Reproduction Repository (if applicable)

No response

Steps to Reproduce

Call export_local with a filename such as test.json and it will produce a file called test.json.json.

req()
	.send({
		operation: 'export_local',
		path: './',
		filename: 'test.json',
		format: 'json'
	});

Expected Behavior

Should only append the format file extension if the filename doesn't have the extension already.

Actual Behavior

Export will create a file with double extension (e.g. test.json.json).

Platform

Harper 5 (main branch)

Console Errors

No response

Screenshots or Videos

No response

Additional Context

This issue was found while running integration tests, namely 7_jobsAndJobRoleTesting.mjs.

Are you planning to fix this issue?

No, just reporting the issue

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