$ git clone -n https://src.fedoraproject.org/rpms/nom-tam-fits.git /var/lib/mock/f40-build-1325674-23538/root/chroot_tmpdir/scmroot/nom-tam-fits
Cloning into '/var/lib/mock/f40-build-1325674-23538/root/chroot_tmpdir/scmroot/nom-tam-fits'...
$ git fetch origin c88d058050055b9b7df75ca5b34c02916c7fcf11:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nom-tam-fits
 * [new ref]         c88d058050055b9b7df75ca5b34c02916c7fcf11 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c88d058 Rebuilt for java-21-openjdk as system jdk