$ git clone -n https://src.fedoraproject.org/rpms/mailnag.git /var/lib/mock/f39-build-1576643-37945/root/chroot_tmpdir/scmroot/mailnag
Cloning into '/var/lib/mock/f39-build-1576643-37945/root/chroot_tmpdir/scmroot/mailnag'...
$ git fetch origin 76beee26c8cf280a271d134eb49016205ec38c50:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mailnag
 * [new ref]         76beee26c8cf280a271d134eb49016205ec38c50 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 76beee2 Add patch to make ssl work with python 3.12