patch 7.4.1755
Problem: When using getreg() on a non-existing register a NULL list is
returned. (Bjorn Linse)
Solution: Allocate an empty list. Add a test.
diff --git a/src/testdir/test_expr.vim b/src/testdir/test_expr.vim
index c8c8e2c..a726933 100644
--- a/src/testdir/test_expr.vim
+++ b/src/testdir/test_expr.vim
@@ -74,3 +74,12 @@
call assert_equal('a', strcharpart('axb', -1, 2))
endfunc
+
+func Test_getreg_empty_list()
+ call assert_equal('', getreg('x'))
+ call assert_equal([], getreg('x', 1, 1))
+ let x = getreg('x', 1, 1)
+ let y = x
+ call add(x, 'foo')
+ call assert_equal(['foo'], y)
+endfunc