Keep spaces after non-tags in Content\BBCode::convert

- Added test case

src/Content/Text/BBCode.php

@@ -1299,9 +1299,9 @@ class BBCode
 				// Remove the abstract element. It is a non visible element.
 				$text = self::stripAbstract($text);
 
-				// Move all spaces out of the tags
-				$text = preg_replace("/\[(\w*)\](\s*)/ism", '$2[$1]', $text);
-				$text = preg_replace("/(\s*)\[\/(\w*)\]/ism", '[/$2]$1', $text);
+				// Move new lines outside of tags
+				$text = preg_replace("#\[(\w*)](\n*)#ism", '$2[$1]', $text);
+				$text = preg_replace("#(\n*)\[/(\w*)]#ism", '[/$2]$1', $text);
 
 				// Extract the private images which use data urls since preg has issues with
 				// large data sizes. Stash them away while we do bbcode conversion, and then put them back

tests/src/Content/Text/BBCodeTest.php

@@ -236,7 +236,11 @@ class BBCodeTest extends MockedTest
 			'bug-7808-code-amp' => [
 				'expectedHtml' => '<code>&amp;</code>',
 				'text' => '[code]&[/code]',
-			]
+			],
+			'task-8800-pre-spaces-notag' => [
+				'expectedHtml' => '[test] Space',
+				'text' => '[test] Space',
+			],
 		];
 	}