$ git clone -n https://src.fedoraproject.org/rpms/R-biglm.git /var/lib/mock/f38-build-724262-99404/root/chroot_tmpdir/scmroot/R-biglm
Cloning into '/var/lib/mock/f38-build-724262-99404/root/chroot_tmpdir/scmroot/R-biglm'...
$ git reset --hard f349116ea815d623e19b2be7b69f4d4f557078d1
HEAD is now at f349116 Fix BuildRequires