$ git clone -n https://src.fedoraproject.org/rpms/plasma-desktop.git /var/lib/mock/f38-build-side-42-init-devel-783976-27946/root/chroot_tmpdir/scmroot/plasma-desktop
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-783976-27946/root/chroot_tmpdir/scmroot/plasma-desktop'...
$ git fetch origin 9ebae6333ca55208864a873b03b1077fc50a31e7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma-desktop
 * [new ref]         9ebae6333ca55208864a873b03b1077fc50a31e7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9ebae63 5.27.4