Issue Summary

Cannot use tilde ~ to start a label, yet the warning message is misleading as it does not contain tilde

Steps to Reproduce

1. Add a label "~confluence" to a page

Expected Results

• Labels get created
• If usage of ~ is not permitted, provide a warning message that contains the character

Actual Results

Unable to create the label and the following warning is shown:

Notes

• Creating a label that contains a ~ is permitted. For example "confluence~"
• Tilde may not be the first or only character.

Workaround

Currently there is no known workaround for this behavior. A workaround will be added here when available