SyntaxError: Invalid regular expression: invalid group specifier name

[sentry]

Sentry Issue: RENKU-UI-2Q

React ErrorBoundary SyntaxError: Invalid regular expression: invalid group specifier name
  at ProjectNamespaceFormField (../../../src/features/projectsV2/fields/ProjectNamespaceFormField.tsx:226:3)
  at PermissionsGuard (../../../src/features/permissionsV2/PermissionsGuard.tsx:35:7)
  at ProjectSettingsForm (../../../src/features/ProjectPageV2/ProjectPageContent/Settings/ProjectSettings.tsx:198:32)
  at ProjectSettingsMetadata (../../../src/features/ProjectPageV2/ProjectPageContent/Settings/ProjectSettings.tsx:517:6)
  at ProjectPageSettings (../../../src/features/ProjectPageV2/ProjectPageContent/Settings/ProjectSettings.tsx:535:23)
...
(26 additional frame(s) were not displayed)

SyntaxError: Invalid regular expression: invalid group specifier name
  at ProjectNamespaceFormField (../../../src/features/projectsV2/fields/ProjectNamespaceFormField.tsx:260:13)
...
(7 additional frame(s) were not displayed)

[leafty]

This is potentially hard to fix: that version of Safari does not support look behind regex. While this rule may work fine in the backend, we probably should be careful with using it in the fronted.

Reference: https://caniuse.com/js-regexp-lookbehind