`git_header_name()` in apply.c uses space as separator between the preimage and postimage pathname, filename with space in them normally won't cause apply to fail because `git_header_name()` isn't using simple split. However, if the pathname has a directory whose name ending with space will lead to `skip_tree_prefix()` mistake the path as an absolute path, and git am fails with
error: git diff header lacks filename information when removing 1 leading pathname component
The simplest fix to this edge case is to quote every path with space, even if the space is not at directory name end.
---
quote.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/quote.c b/quote.c
index 3c05194496..ecbbaed061 100644
--- a/quote.c
+++ b/quote.c
@@ -222,7 +222,7 @@ static signed char const cq_lookup[256] = {
/* 0x00 */ 1, 1, 1, 1, 1, 1, 1, 'a',
/* 0x08 */ 'b', 't', 'n', 'v', 'f', 'r', 1, 1,
/* 0x10 */ X16(1),
- /* 0x20 */ -1, -1, '"', -1, -1, -1, -1, -1,
+ /* 0x20 */ 1, -1, '"', -1, -1, -1, -1, -1,
/* 0x28 */ X16(-1), X16(-1), X16(-1),
/* 0x58 */ -1, -1, -1, -1,'\\', -1, -1, -1,
/* 0x60 */ X16(-1), X8(-1),
--
2.44.0
