Removed excessive spaces after line prefixes for unordered lists in Markdown

changelog_unreleased/markdown/15526.md

@@ -0,0 +1,25 @@
+#### Removed excessive spaces after line prefixes for unordered lists in Markdown (#15526 by @TomasLudvik)
+
+<!-- prettier-ignore -->
+```md
+<!-- Input -->
+- first line
+    - second line indented
+- third line
+    - fourth line
+        - fifth line
+
+<!-- Prettier stable -->
+-   first line
+    -   second line indented
+-   third line
+    -   fourth line
+        -   fifth line
+
+<!-- Prettier main -->
+- first line
+    - second line indented
+- third line
+    - fourth line
+        - fifth line
+```

src/language-markdown/printer-markdown.js

@@ -314,7 +314,7 @@ function genericPrint(path, options, print) {
 
             return node.isAligned ||
               /* workaround for https://github.com/remarkjs/remark/issues/315 */ node.hasIndentedCodeblock
-              ? alignListPrefix(rawPrefix, options)
+              ? alignListPrefix(rawPrefix, options, node.ordered)
               : rawPrefix;
           }
         },
@@ -461,16 +461,20 @@ function printListItem(path, options, print, listPrefix) {
   ];
 }
 
-function alignListPrefix(prefix, options) {
-  const additionalSpaces = getAdditionalSpaces();
+function alignListPrefix(prefix, options, isOrdered) {
+  const additionalSpaces = getAdditionalSpaces(isOrdered);
   return (
     prefix +
     " ".repeat(
       additionalSpaces >= 4 ? 0 : additionalSpaces, // 4+ will cause indented code block
     )
   );
 
-  function getAdditionalSpaces() {
+  function getAdditionalSpaces(isOrdered) {
+    if (!isOrdered) {
+      return 0;
+    }
+
     const restSpaces = prefix.length % options.tabWidth;
     return restSpaces === 0 ? 0 : options.tabWidth - restSpaces;
   }