$ git clone -n https://src.fedoraproject.org/rpms/qt5-qtscxml.git /var/lib/mock/f40-build-2269672-54776/root/chroot_tmpdir/scmroot/qt5-qtscxml
Cloning into '/var/lib/mock/f40-build-2269672-54776/root/chroot_tmpdir/scmroot/qt5-qtscxml'...
$ git fetch origin 47ee53dd5f42323ca7cc4f1442ef11e549864a4a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt5-qtscxml
 * [new ref]         47ee53dd5f42323ca7cc4f1442ef11e549864a4a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 47ee53d 5.15.12