$ git clone -n https://src.fedoraproject.org/rpms/nextpnr.git /var/lib/mock/f39-build-2261900-54437/root/chroot_tmpdir/scmroot/nextpnr
Cloning into '/var/lib/mock/f39-build-2261900-54437/root/chroot_tmpdir/scmroot/nextpnr'...
$ git fetch origin e47e7a84c91ebdce29f994c45194c75a0192408f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nextpnr
 * [new ref]         e47e7a84c91ebdce29f994c45194c75a0192408f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e47e7a8 update to newer snapshot