$ git clone -n https://src.fedoraproject.org/rpms/gnome-extensions-app.git /var/lib/mock/f42-build-3275479-41321/root/chroot_tmpdir/scmroot/gnome-extensions-app
Cloning into '/var/lib/mock/f42-build-3275479-41321/root/chroot_tmpdir/scmroot/gnome-extensions-app'...
$ git fetch origin 29fce056bc25035e49e2aa8e6ad5686b1b657011:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gnome-extensions-app
 * [new ref]         29fce056bc25035e49e2aa8e6ad5686b1b657011 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 29fce05 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild