$ git clone -n https://src.fedoraproject.org/rpms/gimp-lensfun.git /var/lib/mock/f31-build-101757-33430/root/chroot_tmpdir/scmroot/gimp-lensfun
Cloning into '/var/lib/mock/f31-build-101757-33430/root/chroot_tmpdir/scmroot/gimp-lensfun'...
$ git reset --hard 7f6133f0b7f60419be6dcae7445fd39ef4e4d1c6
HEAD is now at 7f6133f Fix build error with exiv2