$ git clone -n https://src.fedoraproject.org/rpms/forge-srpm-macros.git /var/lib/mock/f42-build-3300910-41426/root/chroot_tmpdir/scmroot/forge-srpm-macros
Cloning into '/var/lib/mock/f42-build-3300910-41426/root/chroot_tmpdir/scmroot/forge-srpm-macros'...
$ git fetch origin 9fecd59d19f3d45664486d3b8a506e61a7f2f860:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/forge-srpm-macros
 * [new ref]         9fecd59d19f3d45664486d3b8a506e61a7f2f860 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9fecd59 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild