$ git clone -n https://src.fedoraproject.org/rpms/rubygem-curb.git /var/lib/mock/f40-build-754061-117569/root/chroot_tmpdir/scmroot/rubygem-curb
Cloning into '/var/lib/mock/f40-build-754061-117569/root/chroot_tmpdir/scmroot/rubygem-curb'...
$ git reset --hard 3a80fa553b862214c8681a53ed16e9e3b8e45b19
HEAD is now at 3a80fa5 Update to curb 1.0.5.