$ git clone -n https://src.fedoraproject.org/rpms/icestorm.git /var/lib/mock/f31-build-101385-33386/root/chroot_tmpdir/scmroot/icestorm
Cloning into '/var/lib/mock/f31-build-101385-33386/root/chroot_tmpdir/scmroot/icestorm'...
$ git reset --hard 6f5a4980e2e30dcf203b360975a9ec3ac9df19d8
HEAD is now at 6f5a498 specfile fixes; update to newer snapshot