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-rw-r--r--src/commit.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/commit.c b/src/commit.c
index 4072518ff..5197fdb6d 100644
--- a/src/commit.c
+++ b/src/commit.c
@@ -93,6 +93,9 @@ int git_commit_create(
git_odb *odb;
assert(git_object_owner((const git_object *)tree) == repo);
+ if (!git_signature__has_valid_version(author) ||
+ !git_signature__has_valid_version(committer))
+ return -1;
git_oid__writebuf(&commit, "tree ", git_object_id((const git_object *)tree));