$ git clone -n https://src.fedoraproject.org/rpms/solidity.git /var/lib/mock/f42-build-side-1-3573390-46767/root/chroot_tmpdir/scmroot/solidity
Cloning into '/var/lib/mock/f42-build-side-1-3573390-46767/root/chroot_tmpdir/scmroot/solidity'...
$ git fetch origin 3ac750115c9f182b6c38413f7ff9e0eedce727ca:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/solidity
 * [new ref]         3ac750115c9f182b6c38413f7ff9e0eedce727ca -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3ac7501 Add workaround for an old GCC on secondary arches