Fix docblock indentation loss when fixing empty enclosing line

PhpCollective/Sniffs/WhiteSpace/EmptyEnclosingLineSniff.php

@@ -91,7 +91,9 @@ public function process(File $phpcsFile, $stackPtr): void
                 if ($contentLine < $braceLine + 1) {
                     $phpcsFile->fixer->addNewline($curlyBraceStartIndex);
                 } else {
-                    for ($i = $curlyBraceStartIndex + 1; $i < $beginningOfLine - 1; $i++) {
+                    // Replace first token with newline, remove the rest
+                    $phpcsFile->fixer->replaceToken($curlyBraceStartIndex + 1, $phpcsFile->eolChar);
+                    for ($i = $curlyBraceStartIndex + 2; $i < $beginningOfLine; $i++) {
                         $phpcsFile->fixer->replaceToken($i, '');
                     }
                 }

tests/PhpCollective/Sniffs/WhiteSpace/EmptyEnclosingLineSniffTest.php

@@ -27,4 +27,31 @@ public function testEmptyEnclosingLineFixer(): void
     {
         $this->assertSnifferCanFixErrors(new EmptyEnclosingLineSniff());
     }
+
+    /**
+     * Tests that tabs are preserved when fixing empty enclosing line.
+     *
+     * @return void
+     */
+    public function testTabsPreservedSniffer(): void
+    {
+        $this->prefix = 'tabs-';
+        $this->assertSnifferFindsErrors(new EmptyEnclosingLineSniff(), 1);
+        $this->prefix = null;
+    }
+
+    /**
+     * Tests fixer preserves indentation with tabs.
+     *
+     * This test verifies the fix for the bug where indentation was lost
+     * when removing empty lines after opening braces.
+     *
+     * @return void
+     */
+    public function testTabsPreservedFixer(): void
+    {
+        $this->prefix = 'tabs-';
+        $this->assertSnifferCanFixErrors(new EmptyEnclosingLineSniff());
+        $this->prefix = null;
+    }
 }

tests/_data/EmptyEnclosingLine/tabs-after.php

@@ -0,0 +1,15 @@
+<?php declare(strict_types = 1);
+
+namespace PhpCollective;
+
+class TabsTest {
+	/**
+	 * @param string $foo The foo.
+	 *
+	 * @return void
+	 */
+	public function one(string $foo): void
+	{
+		echo $foo;
+	}
+}

tests/_data/EmptyEnclosingLine/tabs-before.php

@@ -0,0 +1,16 @@
+<?php declare(strict_types = 1);
+
+namespace PhpCollective;
+
+class TabsTest {
+
+	/**
+	 * @param string $foo The foo.
+	 *
+	 * @return void
+	 */
+	public function one(string $foo): void
+	{
+		echo $foo;
+	}
+}