Allow to trim all ops above a certain seq# with a term lower than X - fixes on PR#2

Relates to elastic#10708

Author: Vladimir Dolzhenko

server/src/test/java/org/elasticsearch/index/translog/TranslogTests.java

@@ -1477,7 +1477,7 @@ public void testRecoveryUncommittedCorruptedCheckpoint() throws IOException {
         } catch (IllegalStateException ex) {
             assertEquals("Checkpoint file translog-3.ckp already exists but has corrupted content expected: Checkpoint{offset=3080, " +
                 "numOps=55, generation=3, minSeqNo=45, maxSeqNo=99, globalCheckpoint=-1, minTranslogGeneration=1, trimmedAboveSeqNo=-2} but got: Checkpoint{offset=0, numOps=0, " +
-                "generation=0, minSeqNo=-1, maxSeqNo=-1, globalCheckpoint=-1, minTranslogGeneration=0, trimmedAboveSeqNo=-1}", ex.getMessage());
+                "generation=0, minSeqNo=-1, maxSeqNo=-1, globalCheckpoint=-1, minTranslogGeneration=0, trimmedAboveSeqNo=-2}", ex.getMessage());
         }
         Checkpoint.write(FileChannel::open, config.getTranslogPath().resolve(Translog.getCommitCheckpointFileName(read.generation)), read, StandardOpenOption.WRITE, StandardOpenOption.TRUNCATE_EXISTING);
         try (Translog translog = new Translog(config, translogUUID, deletionPolicy, () -> SequenceNumbers.NO_OPS_PERFORMED, primaryTerm::get)) {