Handle PGP keys that have an email in the 'id' part of the uid

Some keys can have an empty 'email' field, but will contain an email
address in the 'id' field.

actions_resource.go

@@ -442,8 +442,15 @@ func parseOpenPGPKey(data []byte, email string) (key *crypto.Key, err error) {
 	var found bool
 	var identities []string
 	for _, identity := range entity.Identities {
-		identities = append(identities, identity.UserId.Email)
-		if identity.UserId.Email == email {
+		// Some keys can have an empty Email field, but will
+		// contain an email address in the Id field.
+		idEmail := identity.UserId.Email
+		if idEmail == "" && strings.Contains(identity.UserId.Id, "@") {
+			idEmail = identity.UserId.Id
+		}
+
+		identities = append(identities, idEmail)
+		if idEmail == email {
 			found = true
 			break
 		}