$ git clone -n https://src.fedoraproject.org/rpms/qt5-qtscript.git /var/lib/mock/f40-build-800419-143529/root/chroot_tmpdir/scmroot/qt5-qtscript
Cloning into '/var/lib/mock/f40-build-800419-143529/root/chroot_tmpdir/scmroot/qt5-qtscript'...
$ git fetch origin 729cb8a0e54e557611219457432652a62e41172e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt5-qtscript
 * [new ref]         729cb8a0e54e557611219457432652a62e41172e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 729cb8a 5.15.13