Support stable.

[mekemoke]

Imported file only had 30 strings.
Not sure about order of strings.

Plugin: Customize Snapshots (Beta Plugin)
Locale: ja

[mekemoke]

Problem: Translation was put on stable
Recommended Fix: import translation files from stable to dev.

force-update-translations.php 145

function get_source_path( $project, $locale, $format = 'mo', $type = 'dev' ) {
		$locale = GP_Locales::by_field( 'wp_locale', $locale );
		$path = sprintf( 'https://translate.wordpress.org/projects/%1$s/%2$s/%3$s/default/export-translations?filters[status]=current_or_waiting_or_fuzzy',
			$project,
			$type,
			$locale->slug
		);
		$path = ( $format == 'po' ) ? $path : $path . '&format=' . $format;
		$path = esc_url_raw( $path );
		return $path;
	}

ここで $type に dev を渡されていて、変更する手段がないのが原因でした。

[pedro-mendonca]

Some repos only have stable and some only dev.
Would it make sense to have both links? Example:
Update translations dev | stable
The above suggestion was inspired on the plugin GP Import Translations from wordress.org that adds both links on the bottom of the translation tables.

Or will it make sense to try first to get from stable and if error returned, try getting from dev, keeping a single action link as currently?

[ePascalC]

If you put both dev and stable as choices, then you probably need to check for the existence before showing both options.
I would keep only 1 possible option, try to load dev and if nothing found, try to load stable

[pedro-mendonca]

I agree with @ePascalC