$ git clone -n https://src.fedoraproject.org/rpms/evolution.git /var/lib/mock/f38-build-side-42-init-devel-818894-28339/root/chroot_tmpdir/scmroot/evolution
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-818894-28339/root/chroot_tmpdir/scmroot/evolution'...
$ git fetch origin 545682825bfe52e8a3a8a6c808dcc6ef43e91f5a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/evolution
 * [new ref]         545682825bfe52e8a3a8a6c808dcc6ef43e91f5a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5456828 flatpak: Stop disabling WebKitGTK's sandbox