$ git clone -n https://src.fedoraproject.org/rpms/arm-image-installer.git /var/lib/mock/f40-build-2586097-62427/root/chroot_tmpdir/scmroot/arm-image-installer
Cloning into '/var/lib/mock/f40-build-2586097-62427/root/chroot_tmpdir/scmroot/arm-image-installer'...
$ git fetch origin f2de2e577987742985edd19aff7f65f81bf15b7c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/arm-image-installer
 * [new ref]         f2de2e577987742985edd19aff7f65f81bf15b7c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f2de2e5 Added devices to pvresize