Problem when filtering with max fetch size > 1

[abraham-macias]

In what version(s) of Spring Integration are you seeing this issue?

Spring integration SFTP v6.1.3

Describe the bug

If you combine SftpSimplePatternFileListFilter (so you use *.trg files) and SftpPersistentAcceptOnceFileListFilter (so you only accept one file once) by using a ChainFileListFilter, the resulting filter has "supportsSingleFileFiltering" to false.
This causes the filtering to be done and rollback (necessary for SftpPersistentAcceptOnceFileListFilter) in AbstractRemoteFileStreamingMessageSource.listFiles() method.

When you set max fetch size to a number bigger than one (for example 5) and at a certain point it is necessary to "this.toBeReceived.clear()" inside "AbstractRemoteFileStreamingMessageSource.doReceive()", those removed elements from toBeReceived are not rolled back.

To Reproduce

1. Use a SftpStreamingMessageSource with a maxFetchSize = 5 and a ChainFileListFilter filter composed by SftpSimplePatternFileListFilter and SftpPersistentAcceptOnceFileListFilter.
2. Put 2 files in the folder and invoke SftpStreamingMessageSource.receive() method twice.
3. Put 5 files in the folder and invoke SftpStreamingMessageSource.receive() method five times.
4. The last two files won't be received.

Expected behavior

All the 7 files should be received.

Sample

See the related pull request.

[artembilan]

And the fix has been cherry-picked to all requested branches.