Detect versions in tag specs

Closes Homebrew/homebrew#18300.
Closes Homebrew/homebrew#20891.

1 files changed, 1 insertions, 1 deletions

diff --git a/Library/Homebrew/cmd/audit.rb b/Library/Homebrew/cmd/audit.rb
index f19a461a7..603dac89b 100644
--- a/Library/Homebrew/cmd/audit.rb
+++ b/Library/Homebrew/cmd/audit.rb
@@ -276,7 +276,7 @@ class FormulaAuditor
         problem "Invalid or missing #{spec} version"
       else
         version_text = s.version unless s.version.detected_from_url?
-        version_url = Version.parse(s.url)
+        version_url = Version.detect(s.url, s.specs)
         if version_url.to_s == version_text.to_s && s.version.instance_of?(Version)
           problem "#{spec} version #{version_text} is redundant with version scanned from URL"
         end