scm: mercurial: fix error on revision page for empty revision (#7307).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@4704 e93f8b46-1217-0410-a6f0-8f06a7374b81
2011-01-13 12:04:51 +00:00
parent 98b3a50657
commit 89627d0334
3 changed files with 19 additions and 0 deletions
@@ -71,6 +71,7 @@ class Repository::Mercurial < Repository

  # Finds and returns a revision with a number or the beginning of a hash
  def find_changeset_by_name(name)
+    return nil if name.nil? || name.empty?
    if /[^\d]/ =~ name or name.to_s.size > 8
      e = changesets.find(:first, :conditions => ['scmid = ?', name.to_s])
    else