Fix [Attachment Content] [does not contain] searches in "all" mode
Fix [Attachment Content] [does not contain] searches in "all" mode

retorquere/zotero,sendecomp/zotero,rmzelle/zotero,LinuxMercedes/zotero,adunning/zotero,sendecomp/zotero,aurimasv/zotero,LinuxMercedes/zotero,hoehnp/zotero,robamler/zotero,gracile-fr/zotero,gracile-fr/zotero,adunning/zotero,adunning/zotero,LinuxMercedes/zotero,hoehnp/zotero,retorquere/zotero,robamler/zotero,gracile-fr/zotero,hoehnp/zotero,egh/zotero,retorquere/zotero,rmzelle/zotero,robamler/zotero,egh/zotero,egh/zotero,sendecomp/zotero,rmzelle/zotero