$ git clone -n https://src.fedoraproject.org/rpms/libserialport.git /var/lib/mock/f39-build-1470029-33875/root/chroot_tmpdir/scmroot/libserialport
Cloning into '/var/lib/mock/f39-build-1470029-33875/root/chroot_tmpdir/scmroot/libserialport'...
$ git fetch origin 836ee60ed1f07f9003fb8ef65b70d066f7478c08:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libserialport
 * [new ref]         836ee60ed1f07f9003fb8ef65b70d066f7478c08 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 836ee60 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild