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diff --git a/src/applications/transactions/editor/PhabricatorApplicationTransactionEditor.php b/src/applications/transactions/editor/PhabricatorApplicationTransactionEditor.php
--- a/src/applications/transactions/editor/PhabricatorApplicationTransactionEditor.php
+++ b/src/applications/transactions/editor/PhabricatorApplicationTransactionEditor.php
@@ -1164,7 +1164,10 @@
foreach ($xactions as $xaction) {
if ($was_locked) {
- $xaction->setIsLockOverrideTransaction(true);
+ $is_override = $this->isLockOverrideTransaction($xaction);
+ if ($is_override) {
+ $xaction->setIsLockOverrideTransaction(true);
+ }
}
$xaction->setObjectPHID($object->getPHID());
@@ -5204,6 +5207,55 @@
return $xaction->getBodyForMail();
}
+ private function isLockOverrideTransaction(
+ PhabricatorApplicationTransaction $xaction) {
+
+ // See PHI1209. When an object is locked, certain types of transactions
+ // can still be applied without requiring a policy check, like subscribing
+ // or unsubscribing. We don't want these transactions to show the "Lock
+ // Override" icon in the transaction timeline.
+
+ // We could test of a transaction did no direct policy checks, but it may
+ // have done additional policy checks during validation, so this is not a
+ // reliable test (and could cause false negatives, where edits which did
+ // override a lock are not marked properly).
+
+ // For now, do this in a narrow way and just check against a hard-coded
+ // list of non-override transaction situations. Some day, this should
+ // likely be modularized.
+
+
+ // Inverse edge edits don't interact with locks.
+ if ($this->getIsInverseEdgeEditor()) {
+ return false;
+ }
+
+ // For now, all edits other than subscribes always override locks.
+ $type = $xaction->getTransactionType();
+ if ($type !== PhabricatorTransactions::TYPE_SUBSCRIBERS) {
+ return true;
+ }
+
+ // Subscribes override locks if they affect any users other than the
+ // acting user.
+
+ $acting_phid = $this->getActingAsPHID();
+
+ $old = array_fuse($xaction->getOldValue());
+ $new = array_fuse($xaction->getNewValue());
+ $add = array_diff_key($new, $old);
+ $rem = array_diff_key($old, $new);
+
+ $all = $add + $rem;
+ foreach ($all as $phid) {
+ if ($phid !== $acting_phid) {
+ return true;
+ }
+ }
+
+ return false;
+ }
+
/* -( Extensions )--------------------------------------------------------- */

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