Alert user when logged in user email is not the same as the invitation

app/views/invites/show.html.haml

@@ -20,11 +20,18 @@
       = link_to group.name, group_url(group)
   as #{@member.human_access}.
 
-- if @member.source.users.include?(current_user)
+- is_member = @member.source.users.include?(current_user)
+
+- if is_member
   %p
     However, you are already a member of this #{@member.source.is_a?(Group) ? "group" : "project"}.
     Sign in using a different account to accept the invitation.
-- else
+
+- if @member.invite_email != current_user.email
+  %p
+    Note that this invitation was sent to #{mail_to @member.invite_email}, but you are signed in as #{link_to current_user.to_reference, user_url(current_user)} with email #{mail_to current_user.email}.
+
+- unless is_member
   .actions
     = link_to "Accept invitation", accept_invite_url(@token), method: :post, class: "btn btn-success"
     = link_to "Decline", decline_invite_url(@token), method: :post, class: "btn btn-danger prepend-left-10"