$ git clone -n https://src.fedoraproject.org/rpms/gnome-online-accounts.git /var/lib/mock/f41-build-836193-158789/root/chroot_tmpdir/scmroot/gnome-online-accounts
Cloning into '/var/lib/mock/f41-build-836193-158789/root/chroot_tmpdir/scmroot/gnome-online-accounts'...
$ git fetch origin 6d932676fe68af7d46155e286799f9fe887b40b7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gnome-online-accounts
 * [new ref]         6d932676fe68af7d46155e286799f9fe887b40b7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6d93267 Update to 3.51.1