$ git clone -n https://src.fedoraproject.org/rpms/emacs-common-tuareg.git /var/lib/mock/f39-build-1464585-33512/root/chroot_tmpdir/scmroot/emacs-common-tuareg
Cloning into '/var/lib/mock/f39-build-1464585-33512/root/chroot_tmpdir/scmroot/emacs-common-tuareg'...
$ git fetch origin 676124b533e09dbdc27b7ce8edaefa99da4ab91a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/emacs-common-tuareg
 * [new ref]         676124b533e09dbdc27b7ce8edaefa99da4ab91a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 676124b Version 3.0.1