$ git clone -n https://src.fedoraproject.org/rpms/python-botocore.git /var/lib/mock/f40-build-1821458-24912/root/chroot_tmpdir/scmroot/python-botocore
Cloning into '/var/lib/mock/f40-build-1821458-24912/root/chroot_tmpdir/scmroot/python-botocore'...
$ git fetch origin 85a278a0308be87cde8a309f42f199f1d5b86829:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-botocore
 * [new ref]         85a278a0308be87cde8a309f42f199f1d5b86829 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 85a278a 1.34.151