$ git clone -n https://src.fedoraproject.org/rpms/qt5-qtlocation.git /var/lib/mock/f42-build-side-1-3539442-46565/root/chroot_tmpdir/scmroot/qt5-qtlocation
Cloning into '/var/lib/mock/f42-build-side-1-3539442-46565/root/chroot_tmpdir/scmroot/qt5-qtlocation'...
$ git fetch origin 53308fb6fc8d2fdc24a751cf6a9b53d0bc2f6113:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt5-qtlocation
 * [new ref]         53308fb6fc8d2fdc24a751cf6a9b53d0bc2f6113 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 53308fb 5.15.17