Avoid object reference
Avoid object reference

We don't wanna modify the original charObj. "this.prefix" should be a
copy of charObj.prefix.

Open365/spice-web-client,Open365/spice-web-client,Open365/spice-web-client,Open365/spice-web-client,Open365/spice-web-client,Open365/spice-web-client,Open365/spice-web-client,Open365/spice-web-client,Open365/spice-web-client,Open365/spice-web-client