Merge changes from topic "am-56804a9942574f8eb55624f8ca00986c"

* changes:
  [automerger skipped] Merge changes from topic "revert-16575908-dont_abandon_child_qt_dev-VVMFNIYZZO" into qt-dev am: 63257e0e am: 78bdbdd2 am: 1cad7c90 am: cc020a24 -s ours am: c015bacf -s ours am: 6047695b -s ours am: e2836e4f -s ours am: d3199a51 -s ours am: 3a7061d3 -s ours am: 83603751 -s ours
  [automerger skipped] [RESTRICT AUTOMERGE] Revert "Revert "Revert "[pm] remove old stage dirs on low storage""" am: dde06fe4 -s ours am: 269e4e0e -s ours am: 9d8f5dfc -s ours am: 3c01c46e -s ours am: c6813949 -s ours am: 16108392 -s ours am: 86a6cd40 -s ours am: 106e1573 -s ours am: 6382c426 -s ours am: 72598de8 -s ours
  [automerger skipped] Merge "[RESTRICT AUTOMERGE] Revert "Persist destroyed staged sessions until they are cleaned up"" into qt-dev am: 650eb0cc am: 318cccd3 -s ours am: 75365b41 -s ours am: 145dbe01 -s ours am: df695255 -s ours am: 42fced71 -s ours am: df25d67d -s ours am: 9ba7cc3c -s ours am: 3dc03754 -s ours am: 069ba57a -s ours
  [automerger skipped] [RESTRICT AUTOMERGE] Revert "Persist destroyed staged sessions until they are cleaned up" am: 07d74c4c am: 9a00a3d2 -s ours am: 332e0155 -s ours am: c4ef6c60 -s ours am: fa47e361 -s ours am: eac7a175 -s ours am: 69e88a75 -s ours am: c66d91ea -s ours am: aa2fbba0 -s ours am: f04e946f -s ours