$ git clone -n https://src.fedoraproject.org/rpms/libwebcam.git /var/lib/mock/f31-build-95159-32530/root/chroot_tmpdir/scmroot/libwebcam
Cloning into '/var/lib/mock/f31-build-95159-32530/root/chroot_tmpdir/scmroot/libwebcam'...
$ git reset --hard 3d987313cd25d390852ee33f946b6d160b750175
HEAD is now at 3d98731 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild