title: TortoiseSVN 1.8 : Externals greyed out in commit dialog
body: <p>I have a problem with TortoiseSVN 1.8.1. The problem is similar to the one described <a href="https://stackoverflow.com/questions/13755618/svn-committing-externals-on-commit-of-main-trunk">here</a>. </p>
  
  <p>In fact, I have a project that contains a folder with multiple externals. When I want to commit changes in more than one external at once or together with changes to my main project, the externals are always greyed out (like in the second picture <a href="https://stackoverflow.com/questions/13755618/svn-committing-externals-on-commit-of-main-trunk">here</a>). I cannot select them and have to commit each external separately.</p>
  
  <p>The problem occurs with any parent folder of the externals. The externals are in the same repository as my main project. The problem first occured with TortoiseSVN 1.8; it worked with TortoiseSVN 1.7.</p>
  
  <p>Is this a bug in TortoiseSVN 1.8? Or is there a property to enable such a commit? Do I have to set up my externals property in a special way?</p>