$ git clone -n https://src.fedoraproject.org/rpms/emacs-transient.git /var/lib/mock/f39-build-1535679-36247/root/chroot_tmpdir/scmroot/emacs-transient
Cloning into '/var/lib/mock/f39-build-1535679-36247/root/chroot_tmpdir/scmroot/emacs-transient'...
$ git fetch origin 66ff142215321b3db242efa457465602fd2c4a5a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/emacs-transient
 * [new ref]         66ff142215321b3db242efa457465602fd2c4a5a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 66ff142 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild