$ git clone -n https://src.fedoraproject.org/rpms/qt5-qtx11extras.git /var/lib/mock/f40-build-800431-143529/root/chroot_tmpdir/scmroot/qt5-qtx11extras
Cloning into '/var/lib/mock/f40-build-800431-143529/root/chroot_tmpdir/scmroot/qt5-qtx11extras'...
$ git fetch origin a0dade73aaa802c0b38d106682086e7b02c9cb34:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt5-qtx11extras
 * [new ref]         a0dade73aaa802c0b38d106682086e7b02c9cb34 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a0dade7 5.15.13