$ git clone -n https://src.fedoraproject.org/rpms/delve.git /var/lib/mock/f42-build-3364880-45045/root/chroot_tmpdir/scmroot/delve
Cloning into '/var/lib/mock/f42-build-3364880-45045/root/chroot_tmpdir/scmroot/delve'...
$ git fetch origin ff525c696cc32294d464af3af578bd7a4935c2b5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/delve
 * [new ref]         ff525c696cc32294d464af3af578bd7a4935c2b5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ff525c6 Update to 1.24.1 upstream release