$ git clone -n https://src.fedoraproject.org/rpms/mingw-qt6-qtbase.git /var/lib/mock/f40-build-2405938-60558/root/chroot_tmpdir/scmroot/mingw-qt6-qtbase
Cloning into '/var/lib/mock/f40-build-2405938-60558/root/chroot_tmpdir/scmroot/mingw-qt6-qtbase'...
$ git fetch origin bf0fc7189f48a428b4b9052868f904f34c8ddf24:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-qt6-qtbase
 * [new ref]         bf0fc7189f48a428b4b9052868f904f34c8ddf24 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bf0fc71 Rebuild (icu)