patch 8.1.1351: text property wrong after :substitute
Problem: Text property wrong after :substitute.
Solution: Save for undo before changing any text properties.
diff --git a/src/testdir/test_textprop.vim b/src/testdir/test_textprop.vim
index d1897a2..eb30c04 100644
--- a/src/testdir/test_textprop.vim
+++ b/src/testdir/test_textprop.vim
@@ -608,6 +608,19 @@
let expected[0].length = 2
call assert_equal(expected, prop_list(1))
+ " substitute a word, then undo
+ call setline(1, 'the number 123 is highlighted.')
+ call prop_add(1, 12, {'length': 3, 'type': 'comment'})
+ let expected = [{'col': 12, 'length': 3, 'id': 0, 'type': 'comment', 'start': 1, 'end': 1} ]
+ call assert_equal(expected, prop_list(1))
+ set ul&
+ 1s/number/foo
+ let expected[0].col = 9
+ call assert_equal(expected, prop_list(1))
+ undo
+ let expected[0].col = 12
+ call assert_equal(expected, prop_list(1))
+
bwipe!
call prop_type_delete('comment')
endfunc