$ git clone -n https://src.fedoraproject.org/rpms/NetworkManager-sstp.git /var/lib/mock/f39-build-1845996-42107/root/chroot_tmpdir/scmroot/NetworkManager-sstp
Cloning into '/var/lib/mock/f39-build-1845996-42107/root/chroot_tmpdir/scmroot/NetworkManager-sstp'...
$ git fetch origin baf8c1b9df34d2681029f3fbaa6842c4d82b1937:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/NetworkManager-sstp
 * [new ref]         baf8c1b9df34d2681029f3fbaa6842c4d82b1937 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at baf8c1b Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild