Revert "Update to 1.12.9"
This reverts commit ecf3f1567ebe44b431576a02bf7d967f9d14c4df.
Revert "Update sources"
This reverts commit 37f66aeef3df964bfe8269841b5a7f45ef5d47d6.
Revert "Update to 1.12.6"
This reverts commit 3262d27879a167703428ca58aaa60114b45e1ed4.