$ git clone -n https://src.fedoraproject.org/rpms/GtkAda3.git /var/lib/mock/f41-build-781175-13559/root/chroot_tmpdir/scmroot/GtkAda3
Cloning into '/var/lib/mock/f41-build-781175-13559/root/chroot_tmpdir/scmroot/GtkAda3'...
$ git fetch origin 5dc3dac4464e43631866ca859b409edada726931:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/GtkAda3
 * [new ref]         5dc3dac4464e43631866ca859b409edada726931 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5dc3dac Use the macro GPRinstall where possible.