--- /dev/null
+--TEST--
+Bug #14780 Invalid Content-Type when headers() is called before get()
+--SKIPIF--
+--FILE--
+<?php
+include("Mail/mime.php");
+
+$mime = new Mail_mime();
+$mime->setTXTBody("test");
+$mime->setHTMLBody("test");
+
+$head1 = $mime->headers();
+$body = $mime->get();
+$head2 = $mime->headers();
+
+if ($head1 === $head2) {
+ echo "OK";
+}
+
+?>
+--EXPECT--
+OK