I have form with some input where I do action to blobstore.

<form name="templateform" id="templateform" method="post" 
action="<%=blobstoreService.createUploadUrl(
"/Update") %>" enctype="multipart/form-data">

<input type="file" name="pic1" id="pic1">

<input type="file" name="pic2" id="pic2">

<input type="file" name="pic3" id="pic3">


The blobstoreService makes each time 3 blobs (even if I don't load a file to 
the form). If I don't load a file, the blob is unnamed with filesize 0Kb. 


In my servlet I do a check :

BlobKey blobKeyPic1 = blobs.get("foto1");

if (blobKeyPic1 != null) { .... }

--> that BlobKey is never null (because the blobstoreService makes each time 
3 blobs).


A couple of weeks ago this code just works fine, but now its broken ...


Any ideas?




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