fix(node): emit hooks on Node::copy()

When calling `Files\Node\Node::copy()`, `Files\View::copy()` gets called,
but `Files\View::fakeRoot` is empty so the hooks are not emitted if no
path is given to `Files\View::shouldEmitHooks()`.

This results in node-related events like `NodeCopiedEvent` not being
fired when copying files via `Files\Node\Node::copy()`.

`Files\View::shouldEmitHooks()` is given a path as parameter in almost
all places except when called from the `copy()` function. This commit
changes it and passes the copy target path.

Fixes: nextcloud/collectives#1756

Signed-off-by: Jonas <jonas@freesources.org>

Author: mejo-

lib/private/Files/View.php

@@ -938,7 +938,7 @@ public function copy($source, $target, $preserveMtime = false) {
 
 			try {
 				$exists = $this->file_exists($target);
-				if ($this->shouldEmitHooks()) {
+				if ($this->shouldEmitHooks($target)) {
 					\OC_Hook::emit(
 						Filesystem::CLASSNAME,
 						Filesystem::signal_copy,
@@ -978,7 +978,7 @@ public function copy($source, $target, $preserveMtime = false) {
 					$this->changeLock($target, ILockingProvider::LOCK_SHARED);
 					$lockTypePath2 = ILockingProvider::LOCK_SHARED;
 
-					if ($this->shouldEmitHooks() && $result !== false) {
+					if ($this->shouldEmitHooks($target) && $result !== false) {
 						\OC_Hook::emit(
 							Filesystem::CLASSNAME,
 							Filesystem::signal_post_copy,