$ git clone -n https://src.fedoraproject.org/rpms/scalasca.git /var/lib/mock/f40-build-792688-138592/root/chroot_tmpdir/scmroot/scalasca
Cloning into '/var/lib/mock/f40-build-792688-138592/root/chroot_tmpdir/scmroot/scalasca'...
$ git fetch origin 590f1742904ea80aa5cbad2f99a87f31d2d2b997:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/scalasca
 * [new ref]         590f1742904ea80aa5cbad2f99a87f31d2d2b997 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 590f174 Switch scorep-config file dependencies for packages