$ git clone -n https://src.fedoraproject.org/rpms/python-botocore.git /var/lib/mock/f42-build-side-1-3499058-45964/root/chroot_tmpdir/scmroot/python-botocore
Cloning into '/var/lib/mock/f42-build-side-1-3499058-45964/root/chroot_tmpdir/scmroot/python-botocore'...
$ git fetch origin 3cc5862f24a349c0e6e4bc6dd89d603705bf5e04:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-botocore
 * [new ref]         3cc5862f24a349c0e6e4bc6dd89d603705bf5e04 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3cc5862 1.37.37