lib-lda: Don't assert-crash if home directory isn't set.

diff --git a/src/lib-lda/duplicate.c b/src/lib-lda/duplicate.c
index 65040c408e4a3c1c6857b5a7820fe5fdca361e85..609cf32fbfbf836bf8545edbe57b2910f5bf6973 100644 (file)
--- a/src/lib-lda/duplicate.c
+++ b/src/lib-lda/duplicate.c
@@ -343,7 +343,8 @@ struct duplicate_context *duplicate_init(struct mail_user *user)
        }
 
        ctx = i_new(struct duplicate_context, 1);
-       ctx->path = i_strconcat(home, "/"DUPLICATE_FNAME, NULL);
+       ctx->path = home == NULL ? NULL :
+               i_strconcat(home, "/"DUPLICATE_FNAME, NULL);
        ctx->dotlock_set = default_duplicate_dotlock_set;
 
        mail_set = mail_user_set_get_storage_set(user);