$ git clone -n https://src.fedoraproject.org/rpms/rubygem-gtk3.git /var/lib/mock/f33-build-471458-63740/root/chroot_tmpdir/scmroot/rubygem-gtk3
Cloning into '/var/lib/mock/f33-build-471458-63740/root/chroot_tmpdir/scmroot/rubygem-gtk3'...
$ git reset --hard 095e4b4f79aa94dbee6582367f9cf2e2f98b03bd
HEAD is now at 095e4b4 3.4.3