[Bug] Shell snapshot duplicates hyphens in alias names causing tool errors

Bug Description
The shell snapshot feature does not correctly handle aliases with - ~in the name~ in the command. The snapshot tool seems to duplicate the hyphens which cause the bash tool to report errors despite running successfully below the error. This has misled the agent on a few occasions. Removing the alias resolved the problem. Example: alias -- -='cd ..'. I introduce this alias via .bashrc but I believe the alias source to be unrelated.

Environment Info

• Platform: darwin
• Terminal: tmux
• Version: 2.1.12
• Feedback ID: 31e8f344-a63c-41ab-a7da-0e54ece26c1c