When growing the table, take the opportunity to "compact" it by removing
entries with NULL decoration.

Users may have "removed" decorations by passing NULL to
insert_decoration. An object's table entry can't actually be removed
during normal operation, as it would break the linear hash collision
search. But we can remove NULL decoration entries when rebuilding the

Signed-off-by: Kevin Bracey <ke...@bracey.fi>
 decorate.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/decorate.c b/decorate.c
index 2f8a63e..7cb5d29 100644
--- a/decorate.c
+++ b/decorate.c
@@ -49,7 +49,7 @@ static void grow_decoration(struct decoration *n)
                const struct object *base = old_hash[i].base;
                void *decoration = old_hash[i].decoration;
-               if (!base)
+               if (!decoration)
                insert_decoration(n, base, decoration);

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