$ git clone -n https://src.fedoraproject.org/rpms/trace-gui.git /var/lib/mock/f38-build-side-42-init-devel-583972-26097/root/chroot_tmpdir/scmroot/trace-gui
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-583972-26097/root/chroot_tmpdir/scmroot/trace-gui'...
$ git fetch origin 0af47e6b51e5d78f2b050b6f9e3c0284056e214f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/trace-gui
 * [new ref]         0af47e6b51e5d78f2b050b6f9e3c0284056e214f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0af47e6 Initial setup of the repo