```
-BEGIN VERIFY SCRIPT-
sed -i -e 's/static RecursiveMutex/mutable Mutex/' src/txorphanage.h
sed -i -e '/RecursiveMutex/d' src/txorphanage.cpp
sed -i -e 's/g_cs_orphans/m_mutex/g' $(git grep -l g_cs_orphans src/)
-END VERIFY SCRIPT-
```
Completes backport of core#26295:
https://github.com/bitcoin/bitcoin/pull/26295/commits/7082ce3e88d77456d60a5a66bd38807fbd66f311
Depends on D16234.