autoproj_bootstrap in autoproj-1.11.0.rc6

- old
+ new

@@ -2928,10 +2928,10 @@
 
 # If the user specifies "dev" on the command line, install the prerelease
 # version of autoproj. If it is "localdev", expect him to install autoproj and
 # run autoproj bootstrap manually.
 if ARGV.first != "localdev"
-    if ARGV.first == "dev"
+    if ARGV.first == "dev" || (ENV['AUTOPROJ_USE_PRERELEASE'] == '1')
         ENV['AUTOPROJ_USE_PRERELEASE'] = '1'
         Autoproj::PackageManagers::GemManager.with_prerelease = true
         ARGV.shift
     end
     begin