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-rw-r--r--runtime/indent/jsonc.vim3
1 files changed, 3 insertions, 0 deletions
diff --git a/runtime/indent/jsonc.vim b/runtime/indent/jsonc.vim
index bf8e501dd5..058634a6d2 100644
--- a/runtime/indent/jsonc.vim
+++ b/runtime/indent/jsonc.vim
@@ -4,6 +4,7 @@
" Acknowledgement: Based off of vim-json maintained by Eli Parra <eli@elzr.com>
" https://github.com/elzr/vim-json
" Last Change: 2021-07-01
+" 2023 Aug 28 by Vim Project (undo_indent)
" 0. Initialization {{{1
" =================
@@ -20,6 +21,8 @@ setlocal nosmartindent
setlocal indentexpr=GetJSONCIndent()
setlocal indentkeys=0{,0},0),0[,0],!^F,o,O,e
+let b:undo_indent = "setlocal indentexpr< indentkeys< smartindent<"
+
" Only define the function once.
if exists("*GetJSONCIndent")
finish