$ git clone -n https://src.fedoraproject.org/rpms/rubygem-gtk3.git /var/lib/mock/f38-build-684673-80400/root/chroot_tmpdir/scmroot/rubygem-gtk3
Cloning into '/var/lib/mock/f38-build-684673-80400/root/chroot_tmpdir/scmroot/rubygem-gtk3'...
$ git reset --hard eb1605aab352f6ce53696f9641367a7adb7082bf
HEAD is now at eb1605a 4.1.1 entry