feat(send): add `merge-base` tag to PR (Update)

following its inclusion in the NIP-34 spec

1 files changed, 5 insertions, 1 deletions

diff --git a/src/bin/ngit/sub_commands/send.rs b/src/bin/ngit/sub_commands/send.rs
index 0e4a572..6ae0cda 100644
--- a/src/bin/ngit/sub_commands/send.rs
+++ b/src/bin/ngit/sub_commands/send.rs
@@ -206,11 +206,15 @@ pub async fn launch(cli_args: &Cli, args: &SubCommandArgs, no_fetch: bool) -> Re
     commits.reverse();
 
     let events = if as_pr {
+        let tip = commits.last().context("no commits")?; // commits has been reversed to oldest first
+        let first_commit = commits.first().context("no commits")?;
         select_servers_push_refs_and_generate_pr_or_pr_update_event(
             &client,
             &git_repo,
             &repo_ref,
-            commits.last().context("no commits")?,
+            tip,
+            first_commit,
+            git_repo.get_commit_parent(first_commit).ok().as_ref(),
             &mut user_ref,
             root_proposal.as_ref(),
             &cover_letter_title_description,