$ git clone -n https://src.fedoraproject.org/rpms/kchmviewer.git /var/lib/mock/f31-build-103158-33604/root/chroot_tmpdir/scmroot/kchmviewer
Cloning into '/var/lib/mock/f31-build-103158-33604/root/chroot_tmpdir/scmroot/kchmviewer'...
$ git reset --hard 4c08926683a2fd7cfd4cb9ed2a90c5df40a9f993
HEAD is now at 4c08926 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild