infinitepush: don't wrap bundle2.processparts while calling `hg unbundle`

This patch adds dirty logic to check whether we are processing `hg unbundle`
instead of an `hg incoming` to prevent the wrapping of bundle2.processparts
function.

Differential Revision: https://phab.mercurial-scm.org/D2957

hgext/infinitepush/__init__.py

@@ -869,6 +869,13 b' def _getorcreateinfinitepushlogger(op):'
     return logger
 
 def processparts(orig, repo, op, unbundler):
+
+    # make sure we don't wrap processparts in case of `hg unbundle`
+    tr = repo.currenttransaction()
+    if tr:
+        if tr.names[0].startswith('unbundle'):
+            return orig(repo, op, unbundler)
+
     if unbundler.params.get('infinitepush') != 'True':
         return orig(repo, op, unbundler)