[LyX/master] Revert 65b674ba4eff.

[Pavel Sanda]

commit 33c68d7750e4615747b27b1963ba63f53ff912ac
Author: Pavel Sanda <sanda at lyx.org>
Date:   Fri Jan 28 18:12:45 2022 +0100

    Revert 65b674ba4eff.
    
    We do not for what crash was this fix intended, but we know
    that the fix introduced freeze in xhtml exports (e.g. merged manual).
    
    https://www.mail-archive.com/lyx-devel@lists.lyx.org/msg216835.html
---
 src/Buffer.cpp |    3 ---
 1 files changed, 0 insertions(+), 3 deletions(-)

diff --git a/src/Buffer.cpp b/src/Buffer.cpp
index 7cb5ac2..cfdb9d9 100644
--- a/src/Buffer.cpp
+++ b/src/Buffer.cpp
@@ -3547,9 +3547,6 @@ void Buffer::collectChildren(ListOfBuffers & children, bool grand_children) cons
 	// loop over children
 	for (auto const & p : d->children_positions) {
 		Buffer * child = const_cast<Buffer *>(p.first);
-		// This can happen when called during GUI operations
-		if (!theBufferList().isLoaded(child))
-			continue;
 		// No duplicates
 		ListOfBuffers::const_iterator bit = find(children.begin(), children.end(), child);
 		if (bit != children.end())