tdf#62625 - reopen temp stream to readBasic .xls VBA

InputStream was closed, but an InStream was still open,
so InputStream was not being re-created.
Apparently either most web protocols aren't properly closed,
or else a second stream is needed for these kinds of protocols.

Required on Linux for INetProtocol::Http, Generic, Smb, Sftp
and perhaps more.  Required on Windows/Mac for Remote WebDAV
(although http://xx/xx.xls worked)

Change-Id: Icb732518fb8185168c5ed1cb9e32c84c9d8d71bb
Reviewed-on: https://gerrit.libreoffice.org/30303Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

sfx2/source/doc/docfile.cxx

@@ -2350,7 +2350,8 @@ void SfxMedium::GetLockingStream_Impl()
 
 void SfxMedium::GetMedium_Impl()
 {
-    if ( !pImpl->m_pInStream )
+    if ( !pImpl->m_pInStream
+        || (pImpl->bIsTemp && !pImpl->xInputStream.is() && !pImpl->m_xInputStreamToLoadFrom.is() && !pImpl->xStream.is() && !pImpl->m_xLockingStream.is() ) )
     {
         pImpl->bDownloadDone = false;
         Reference< css::task::XInteractionHandler > xInteractionHandler = GetInteractionHandler();