fix(s3): trim multiple spaces to single space in original path header

Signed-off-by: Kent Delante <kent@delante.me>

The spec defines that x-amz-meta-original-path header needs spaces to
be trimmed and multiple spaces need to be converted to a single
space. This is to comply with the spec and fix it for some storage
hosts that return a SignatureDoesNotMatch error when not done.

Author: leftybournes

lib/private/Files/ObjectStore/ObjectStoreStorage.php

@@ -478,7 +478,7 @@ public function writeStream(string $path, $stream, ?int $size = null): int {
 		$metadata = [
 			'mimetype' => $mimetype,
 			'original-storage' => $this->getId(),
-			'original-path' => $path,
+			'original-path' => preg_replace('/\s+/', ' ', $path) ?? $path,
 		];
 		if ($size) {
 			$metadata['size'] = $size;