patch 9.1.0262: Test for TextChanged is flaky with ASAN

Problem:  Test for TextChanged is flaky with ASAN.
Solution: Wait for the file to be non-empty.
          (zeertzjq)

closes: #14404

Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/testdir/test_autocmd.vim b/src/testdir/test_autocmd.vim
index 3a313ed..cc1f6cd 100644
--- a/src/testdir/test_autocmd.vim
+++ b/src/testdir/test_autocmd.vim
@@ -4486,7 +4486,7 @@
       au TextChangedI <buffer> :call TextChangedAutocmd('I')
 
       nnoremap <CR> o<Esc>
-      call writefile([''], 'XTextChangedI3')
+      autocmd SafeState * ++once call writefile([''], 'XTextChangedI3')
   END
 
   call writefile(before, 'Xinit', 'D')
@@ -4495,6 +4495,7 @@
         \ {'term_rows': 10})
   call assert_equal('running', term_getstatus(buf))
   call WaitForAssert({-> assert_true(filereadable('XTextChangedI3'))})
+  call WaitForAssert({-> assert_equal([''], readfile('XTextChangedI3'))})
 
   " TextChanged should trigger if a mapping enters and leaves Insert mode.
   call term_sendkeys(buf, "\<CR>")
diff --git a/src/version.c b/src/version.c
index 450e0d8..d31484a 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    262,
+/**/
     261,
 /**/
     260,