$ git clone -n https://src.fedoraproject.org/rpms/R-rtracklayer.git /var/lib/mock/f31-build-74197-31091/root/chroot_tmpdir/scmroot/R-rtracklayer
Cloning into '/var/lib/mock/f31-build-74197-31091/root/chroot_tmpdir/scmroot/R-rtracklayer'...
$ git reset --hard 5c10024a4944233feb50003fa1b7e7602c4f77f5
HEAD is now at 5c10024 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild