$ git clone -n https://src.fedoraproject.org/rpms/rubygem-rake-compiler.git /var/lib/mock/f37-build-side-32-misc-devel-315076-15147/root/chroot_tmpdir/scmroot/rubygem-rake-compiler
Cloning into '/var/lib/mock/f37-build-side-32-misc-devel-315076-15147/root/chroot_tmpdir/scmroot/rubygem-rake-compiler'...
$ git reset --hard 237aa3b5213554bd278bffa3cbd6c3b16743a1e4
HEAD is now at 237aa3b 1.2.1