$ git clone -n https://src.fedoraproject.org/rpms/flameshot.git /var/lib/mock/f42-build-3346761-45002/root/chroot_tmpdir/scmroot/flameshot
Cloning into '/var/lib/mock/f42-build-3346761-45002/root/chroot_tmpdir/scmroot/flameshot'...
$ git fetch origin bfb34bf51c784c2ddc1e6f56555e44e89e14a85a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/flameshot
 * [new ref]         bfb34bf51c784c2ddc1e6f56555e44e89e14a85a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bfb34bf Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild