Cannot put negative numbers via CLI

Run following command via CLI
[remoting://localhost:9999/local/default]> put key1 -0.1234567
[remoting://localhost:9999/local/default]> get key1
0.1234567
[remoting://localhost:9999/local/default]> put key2 -1.1234567
[remoting://localhost:9999/local/default]> get key2
0.1234567
[remoting://localhost:9999/local/default]> put key3 -1234567
[remoting://localhost:9999/local/default]> get key3
234567
[remoting://localhost:9999/local/default]>
— Server log
10:51:20,267 ERROR [stderr] (pool-1-thread-8) line 1:10 mismatched character '1' expecting '-'
10:52:23,997 ERROR [stderr] (pool-1-thread-8) line 1:10 mismatched character '0' expecting '-'
10:52:32,432 ERROR [stderr] (pool-1-thread-8) line 1:10 mismatched character '1' expecting '-'
10:52:59,252 ERROR [stderr] (pool-1-thread-8) line 1:10 mismatched character '1' expecting '-'