$ git clone -n https://src.fedoraproject.org/rpms/courier-unicode.git /var/lib/mock/f40-build-2275969-55119/root/chroot_tmpdir/scmroot/courier-unicode
Cloning into '/var/lib/mock/f40-build-2275969-55119/root/chroot_tmpdir/scmroot/courier-unicode'...
$ git fetch origin d42830c53627cb38fd00d4cc5b57a115ad04c9e0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/courier-unicode
 * [new ref]         d42830c53627cb38fd00d4cc5b57a115ad04c9e0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d42830c Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild