$ git clone -n https://src.fedoraproject.org/rpms/plasma-sdk.git /var/lib/mock/f42-build-862346-170742/root/chroot_tmpdir/scmroot/plasma-sdk
Cloning into '/var/lib/mock/f42-build-862346-170742/root/chroot_tmpdir/scmroot/plasma-sdk'...
$ git fetch origin 8a1213ff454e1edd66b7fde0c7b78c770685d8d7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma-sdk
 * [new ref]         8a1213ff454e1edd66b7fde0c7b78c770685d8d7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8a1213f 6.2.4